BELGIUM-FRANCE-ATTACKS(01 of13)
Open Image ModalBelgian Prime Minister Charles Michel (C) speaks during a joint press conference with Vice Prime Minister and Minister of Employment, Economy and Consumer Affairs Kris Peeters (L) and Vice Prime Minister and Interior Minister Jan Jambon after a meeting of the national security council in Brussels on November 21, 2015. Brussels was on terror lockdown, with a gunman still on the run after the Paris attacks which have rattled nerves throughout Europe. AFP PHOTO / BELGA / NICOLAS MAETERLINCK (Photo credit should read NICOLAS MAETERLINCK/AFP/Getty Images) (credit:NICOLAS MAETERLINCK via Getty Images)
BELGIUM-ATTACKS-ALERT(02 of13)
Open Image ModalA journalist interviews a man as a soldier patrols the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(03 of13)
Open Image ModalPeople walk down the the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(04 of13)
Open Image ModalSoldiers patrol the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(05 of13)
Open Image ModalSoldiers patrol the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(06 of13)
Open Image ModalA soldier patrols he Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(07 of13)
Open Image ModalA soldier patrols the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(08 of13)
Open Image ModalWomen with umbrellas walk past a soldier patrolling the Rue Neuve pedestrian shopping street in Brussels on November 21, 2015. All metro train stations in Brussels will be closed on November 21, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
BELGIUM-ATTACKS-ALERT(09 of13)
Open Image ModalA man walks by a military vehicle parked in front of the Central Railways station in Brussels on November 21, 2015. All metro train stations in Brussels will be closed today, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO/JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)
Terror alert in Brussels(10 of13)
Open Image ModalBRUSSELS, BELGIUM - NOVEMBER 21: Belgian security forces patrol on the streets as the Belgian authorities raised the terror alert to the level 4, highest level warning of an 'imminent threat', in Brussels, Belgium on November 21, 2015. Authorities warn the people keeping away from crowded areas as well as subway stations temporarily restricted for entrance. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
Terror alert in Brussels(11 of13)
Open Image ModalBRUSSELS, BELGIUM - NOVEMBER 21: Belgian security forces patrol on the streets as the Belgian authorities raised the terror alert to the level 4, highest level warning of an 'imminent threat', in Brussels, Belgium on November 21, 2015. Authorities warn the people keeping away from crowded areas as well as subway stations temporarily restricted for entrance. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
Terror alert in Brussels(12 of13)
Open Image ModalBRUSSELS, BELGIUM - NOVEMBER 21: A subway station entrance is seen closed as the Belgian authorities raised the terror alert to the level 4, highest level warning of an 'imminent threat', in Brussels, Belgium on November 21, 2015. Authorities warn the people keeping away from crowded areas as well as subway stations temporarily restricted for entrance. (Photo by Dursun Aydemir/Anadolu Agency/Getty Images) (credit:Anadolu Agency via Getty Images)
BELGIUM-ATTACKS-ALERT(13 of13)
Open Image ModalA photo shows a closed entrance of the Shuman Subway Station in Brussels on November 21, 2015. All metro train stations in Brussels will be closed today, the city's public transport network said after Belgium raised the capital's terror alert to the highest level, warning of an 'imminent threat'. As Europe tightens security a week on from the jihadist attacks in Paris that left 130 people dead, Belgium's OCAM national crisis centre raised its alert level to 4 early on November 21, 'signifying a very serious threat for the Brussels region'. AFP PHOTO / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images) (credit:JOHN THYS via Getty Images)