Police in California said eight people were shot and wounded at an apartment complex during a dice game on Sunday night.

A San Bernardino police spokeswoman, Sadie Albers, said officers arrived at a chaotic scene on Sunday night and initially thought 10 people had been wounded. The victims were seven adults and a 17-year-old.

Albers said the 17-year-old and one adult were critically wounded. The six other victims had wounds that were not life-threatening and were expected to survive.

Albers said the victims were not cooperating with investigators, so little was known about the shooting. She said evidence at the scene showed that multiple firearms were used.

The shooting happened during a hot holiday weekend in a city of more than 216,000 residents about 60 miles east of Los Angeles.

San Bernardino was the scene of a 2015 mass shooting in which a husband and wife killed 14 people and wounded 22 before police shot them dead. The couple were inspired by Islamic extremists, authorities said.

There was no indication that Sunday’s gunfire was in any way connected to the 2015 shooting. It took place a week after a gunman shot nine people, killing two, at a video game tournament in Jacksonville, Florida.

Police said there was gang activity in the area, but added that it was too early in the investigation to attribute the shooting to a gang rivalry.