Campaigners call on Theresa May to guarantee rights of EU citizens living in Britain

Theresa May's attempt to break the deadlock in Brexit negotiations will fail unless she guarantees the rights of millions of European Union (EU) citizens living in Britain, demonstrators have warned.

A group of about 30 gathered in the piazza in front of the Santa Maria Novella basilica in Florence where the UK Prime Minister is due to deliver a key speech on Brexit designed to push faltering talks forward.