A 20-YEAR-old man has been arrested on suspicion of sexually assaulting a woman in Bradford city centre.

Detective Inspector Ryan Bragg, of Bradford District CID, said police were called to Duckett Lane at 4am today.

He added that a woman had made an allegation of a "serious sexual assault".

"The call came in at 4am," said DI Bragg. "We have one 20-year-old man in custody and our enquiries are continuing."

Police cordoned off Duckett Lane today and an officer has been standing guard at the entrance to the street, just opposite the Kirkgate Centre.