British aid workers believed to have been detained by Russians in Ukraine named

A Ukrainian flag flying on Cadogan Pier by the River Thames in London. (PA Wire)

Two British men who are believed to have been detained in Ukraine by Russian forces were working as humanitarian aid volunteers, a non-profit group has said.

The Presidium Network said Paul Urey and Dylan Healey were captured early on Monday morning at a checkpoint south of the city of Zaporizhzhia in south-eastern Ukraine.