2 detained after fatal shooting at Brentwood 24-Hour Fitness

BRENTWOOD, Calif. - Brentwood police said two people have been detained after a shooting at 24-Hour Fitness that left one man dead and three people wounded.

Authorities said the two people detained are not under arrest.

The shooting happened around 2 a.m. Thursday at the fitness center located on Lone Tree Way, police said.

Authorities said a fight broke out on the basketball court and then continued into the parking lot.

Police said surveillance footage from the gym showed that at least two people pulled out guns and fired multiple shots, striking four people.

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One man died, and the three who were shot reportedly took themselves to the hospital.

Officials said the victim who died was in his 20s. His name is being withheld at this time.

Police said the incident is isolated and there is no threat to public safety.