A bus passenger was verbally threatened by another woman passenger, whose companion then showed they had a handgun with them.
Police are now appealing for help in finding the gun-toting pair, who were seen with the firearm on the Route 12 bus between Camberwell and Peckham Rye at 5.40pm on August 8.
Officers from the Roads and Transport Policing Command (RTPC) are appealing for information following the reports that the man was seen in possession of a firearm.
A 21-year-old woman was travelling on the Route 12 bus towards Dulwich when the bus stopped at Camberwell Green where two men, a woman and a young boy got on.
The woman from the group sat down next to the victim and one of the men sat in the seat in front of her.
The woman became verbally abusive and threatening towards the victim and shortly afterwards the man who was seated in front leaned over and placed a black handgun into the woman’s handbag.
At approximately 6.25pm, the two suspects got off the bus at Peckham Rye, along with the other man and the young boy.
The man suspect is described as black, aged in his 30s, with short hair and a goatee beard.
He had a tattoo on his neck and was wearing a white T-shirt, blue jeans and a dark blue baseball cap.
The woman is also described as black, aged in her 30s, with short black hair and a neck tattoo.
She was wearing a black leather jacket over a white top and a white baseball cap with a red stripe around it.
PC Cara Newton, from the Met’s RTPC, said: “We are appealing for anyone who recognises the identity of these two suspects to come forward and speak with us.”
Any witnesses or anyone with information is asked to call the Roads and Transport Policing Command via 101 or tweet @MetCC. Alternatively, they can call Crimestoppers anonymously on 0800 555 111.