A 14-year-old schoolgirl was raped on the top deck of a bus in Glasgow last Friday night.
The driver of the bus was unaware of the attack, his company has said. The girl got on the bus with a friend and they took a seat downstairs. The victim went to the upper deck where she got into a conversation with two men who boarded the bus in the city centre.
She was then assaulted and raped by both of them. Her friend, also 14, went up to see her and raised the alarm with passengers downstairs.
A woman and two men came to the girls' aid. They all left the bus without apparently informing the driver.
No CCTV footage is available from the bus while Strathclyde Police are appealing for those passengers to come forward to help their investigation.
Both of the attackers are said to be aged around 18 to 20.
One is about 5ft 10ins, with a shaved head and wearing a black jumper. The other man has brown, spiky hair and was wearing a tracksuit which may have been grey, with a body warmer or jacket.