Babyshambles singer Pete Doherty has denied starting a fight with an Italian photographer after a gig in Rome.
Pete Doherty has been getting treatment for his drug addiction
An Italian newspaper claims it happened outside Doherty's hotel after he played at the Piper Club.
The photographer involved reportedly went to hospital and the London Evening Standard said he was thinking of making a complaint about the incident.
But a spokesman for the singer said he has witnesses who saw him clearly being hit on the head with a camera.
"Reports that the photographer might make an official complaint will certainly interest Pete's lawyers," the spokesman said.
Photos of the rock star covered in blood have appeared in British newspapers.
According to the Italian newspaper Corriere della Sera, Doherty, 27, who had been swigging from a vodka bottle all night, had injured himself earlier on in the evening.
The paper claims the former Libertines frontman broke a bottle whilst up on stage, cut himself and carried on with blood on his chest.
More trouble during the gig was reported after the drummer was forced to leave the stage, hurt after a missile was thrown onto the stage from the audience.
In retaliation Doherty is said to have insulted fans and at the end of the gig he used the microphone stand to smash up the instruments.
It is not the first time a Babyshambles gig has turned violent. Last year Doherty and the band's guitarist, Patrick Walden fought on stage during a concert at London's Brixton Academy.