Central London
Protestors had originally planned to march on Central London.
Shocking pictures showed a woman trapped in between two cars. Police say the incident could leave her with life-changing injuries.
The 28-year-old was left with injuries to his face, a fractured cheekbone and eye sockets and a broken nose.
Activists from the group Reclaim the Power blocked the entrance to the Drax headquarters in central London. They claim the energy supplier is contributing to the UK's reliance on fossil fuels. In Scunthorpe, activists climbed construction cranes where an SSE power plant is being upgraded.
The US president accused the demonstrators of being “put in for political reasons”.
The balloon is soaring over Westminster on day two of Donald Trump's state visit.
"Holiday makers are being given advance notice to change travel plans," the group said in a statement.
Hail and rain showers struck central London and the east coast on Saturday.
One officer apparently requested 'Insomnia' by Faithless.
The climate change protest group Extinction Rebellion started an international protest in London, blocking central areas such as Marble Arch, Oxford Circus and Waterloo bridge. The group is demanding that the government declare an ecological and climate emergency and take action to end climate change. At least three men were arrested for defacing the exterior of the oil company Shell’s offices.