Detectives are continuing their investigations into a serious sexual assault of a woman in Bradford.

The 31-year-old victim was attacked on Sunday night in an isolated alleyway off Lower Grattan Road (pictured) in the red-light district of the city.

The rape attack was reported to police just before 8.30pm and the area was sealed off while police investigations took place.

Specially trained officers are interviewing the woman and detectives are studying CCTV footage of the area.

A police spokesman said yesterday: “Inquiries are ongoing and we continue to appeal for information.”

Any witnesses, or anyone with information about the attacker, should contact West Yorkshire Police via 101.