Image copyright Google Image caption The serious sexual assault took place on Cadogan Street

A 34-year-old woman was raped in Glasgow city centre in the early hours of Friday, police have said.

The woman was in Cadogan Street at about 05:00 when she was attacked by a man.

Police said it was understood that the victim, her friend and the man then boarded a number 61 bus on Hope Street at about 06:18.

The man was described as in his 20s, sallow-skinned and wearing dark clothing.

Det Insp Diane Caldwell said: "We are looking to speak to anyone that was travelling on the number 61 bus around this time who may have witnessed a disturbance involving two women and a man.

"Officers are carrying out inquiries locally, examining CCTV and patrols have been stepped up around the city centre to provide reassurance to members of the public."