Actor Leonardo DiCaprio has filed a police report over an attack at a party that left him needing 12 stitches in his neck, police said on Tuesday. The star of “The Aviator” and “Titanic” said he was the victim of assault with a deadly weapon and needed hospital treatment for his wounds. Police said no one had been arrested and there was no known motive for the attack, which occurred at a Hollywood party on Friday.

According to media reports, DiCaprio was hit in the face by a woman wielding a beer bottle as he was leaving a party at the home of socialite Paris Hilton’s ex-boyfriend Rick Solomon. The woman was reportedly looking for her ex-boyfriend. DiCaprio’s publicist Ken Sunshine said the actor was in Los Angeles taking a break from filming “The Departed”. “While leaving a small private gathering, Leo was attacked by a woman who was trespassing and had been repeatedly asked to leave the property,” Sunshine said. Police are investigating the incident.