( Evening standard) -- Protesters chanted outside Downing Street, blasting the Conservative Party for uniting with the DUP, which has drawn criticism for its right-wing stance on issues such as abortion.
People carried placards reading anti-DUP and pro-Jeremy Corbyn messages, while chants of “Tories out, refugees in” echoed across Parliament Square.
The protest comes the day after Mrs May formed a minority government propped up by the DUP, having failed to win a majority in Thursday’s General Election.
Organisers from Stand Up To Racism and the Stop The War Coalition spoke to the crowd, who cheered at the mention of Labour leader Jeremy Corbyn’s name.
The protest then moved to outside the gates of Downing Street, where they were met by a wall of uniformed police officers.
Luke O'Neill, who voted for Labour in Kensington, said he felt Mr Corbyn had motivated young people.
The 27-year-old said: "May's mandate has gone, that's probably the best news and Labour is gaining - that is the best news as well.
"Jeremy Corbyn gave us power, that's what he's all about."
The Prime Minister has been forced to seek a “confidence and supply” deal with the DUP after losing her majority in a snap election that spectacularly backfired.
An online petition has also gathered almost 500,000 signatures, with the political party branded “dangerous” on the page.