(01 of25)
Open Image ModalA firebomb explodes beside a riot police member during a massive protest on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(02 of25)
Open Image ModalRiot police member run after protesters throwing stones and petrol bombs in central Athens during a massive protest on February 4, 2016. (credit:LOUISA GOULIAMAKI via Getty Images)
(03 of25)
Open Image ModalRiot policemen try to avoid a petrol bomb thrown by protesters during a 24-hour nationwide general strike in Athens, Thursday, Feb. 4, 2016. (credit:Thanassis Stavrakis/AP)
(04 of25)
Open Image ModalRiot policemen try to avoid a petrol bomb thrown by protesters during a 24-hour nationwide general strike in Athens, Thursday, Feb. 4, 2016. (credit:Thanassis Stavrakis/AP)
(05 of25)
Open Image ModalRiot policemen try to avoid a petrol bomb thrown by protesters during a 24-hour nationwide general strike in Athens, Thursday, Feb. 4, 2016. (credit:Thanassis Stavrakis/AP)
(06 of25)
Open Image ModalDemonstrators and medias run from tear gas during a massive protest in front of the Greek parliament in Athens on February 4, 2016. (credit:ANGELOS TZORTZINIS via Getty Images)
(07 of25)
Open Image ModalA firebomb explodes beside a riot police member during a massive protest on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(08 of25)
Open Image ModalDemonstrators clash with Greek riot police in Athens, on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(09 of25)
Open Image ModalDemonstrators clash with riot police in Athens. on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(10 of25)
Open Image ModalA lawyer shouts a slogan during a 24-hour general strike in Athens on February 4, 2016. (credit:ANGELOS TZORTZINIS via Getty Images)
(11 of25)
Open Image ModalA riot police member walks through fire during a massive protest beside the Greek parliament during a massive protest on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(12 of25)
Open Image ModalDemonstrators march towards the Greek parliament during a massive protest on February 4, 2016. (credit:LOUISA GOULIAMAKI via Getty Images)
(13 of25)
Open Image ModalA man sits outside a store as demonstrators clash with riot police in Athens, on February 4, 2016. (credit:ARIS MESSINIS via Getty Images)
(14 of25)
Open Image ModalProtesters gather in front of the Greek parliament in Athens during a massive protest rally on February 4, 2016. (credit:LOUISA GOULIAMAKI via Getty Images)
(15 of25)
Open Image ModalDemonstrators shout slogans beside the Greek parliament in Athens during a massive protest on February 4, 2016. (credit:LOUISA GOULIAMAKI via Getty Images)
(16 of25)
Open Image ModalProtesters clash with riot policemen during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(17 of25)
Open Image ModalProtesters clash with riot policemen during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(18 of25)
Open Image ModalProtesters clash with riot policemen during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(19 of25)
Open Image ModalProtesters and medias protect themselves from tear gas during a massive protest in front of the Greek parliament in Athens on February 4, 2016. (credit:Milos Bicanski via Getty Images)
(20 of25)
Open Image ModalProtesters clash with riot policemen during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(21 of25)
Open Image ModalRiot policemen use tear gas during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(22 of25)
Open Image ModalRiot police protect themselves from tear gas during a massive protest in front of the Greek parliament in Athens on February 4, 2016. (credit:Milos Bicanski via Getty Images)
(23 of25)
Open Image ModalProtesters throw stones at riot police during a 24-hour nationwide general strike on February 4, 2016 in Athens, Greece. (credit:Milos Bicanski via Getty Images)
(24 of25)
Open Image ModalA protester kicks a tear gas canister amid clashes with riot police during a 24-hour nationwide general strike in Athens, Thursday, Feb. 4, 2016. (credit:ASSOCIATED PRESS)
(25 of25)
Open Image ModalRiot policemen stand through smoke amid clashes with protesters during a 24-hour nationwide general strike in Athens, Thursday, Feb. 4, 2016. (credit:ASSOCIATED PRESS)