Hollywood actor Kevin Spacey is understood to be being investigated by British police over a second alleged sexual assault.
It is understood officers from the Metropolitan Police's child abuse and sexual offences command are looking into claims the House of Cards actor sexually assaulted a man in Lambeth in 2005.
The Met were already investigating an allegation of assault regarding Spacey against a different man in the same area in 2008.
The second allegation was made on Friday, police said.
The Met declined to identify the alleged attacker but said in a statement:
"On Wednesday, November 1, City of London Police referred an allegation of sexual assault to the Metropolitan Police Service.
"It is alleged a man assaulted another man (Victim 1) in 2008 in Lambeth.
"On Friday, November 17 a further allegation was made about the same man.
"The allegations are of sexual assaults against a man (Victim 2) in 2005 in Lambeth."
In response to the claims, Spacey issued a post on Twitter in which he wrote that he did not remember the alleged incident and also announced he is living as a gay man.
The theatre said none of the allegations had been verified, and that Spacey had not commented on them