A man died after he was hit in the head with a pipe during a fight Friday in the Westlake district of Los Angeles.
The incident occurred before 1 a.m. and police responded to the 400 block of South Hartford Avenue, according to the Los Angeles Police Department Rampart Division.
Police said two couples had been arguing inside an apartment before it turned into a fistfight between two men outside on the street. One of the men used a 2.5-foot pipe to beat the other, killing him.
The victim died at the scene from blunt force trauma, police said. His identity was not immediately released.
Police said he did not have a weapon, but witnesses told investigators the man who was killed may have picked up the pipe before it was turned around on him.
"From what our witnesses told us, the victim initially had the pipe and how that was removed from him we don't know," said Lt. Joe Losorelli of the Los Angeles Police Department's Rampart Division. "There was a fist fight out in the street. Whether that weapon was robbed, we don't know. So that's what were trying to figure out."
The man with the pipe and his girlfriend turned themselves in to authorities and were being questioned by police.
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Police said they did not know what led up to the initial fight in the apartment.
No arrests had been made as of 8 a.m. Friday, according to the Los Angeles Police Department.
Jonathan Gonzalez contributed to this report.