Police in Southern California responded late Tuesday to reports of gunfire at a Long Beach home, killing at least three and wounding several.

First responders were seen outside the home treating seven victims in a nearby yard, ABC 7 reported. Reports indicated that there may have been a Halloween party at the house at the time of the shooting.

Long Beach shooting: At least 3 dead, several injured by gunfire at home. At least three people were killed and multiple others wounded in a shooting Tuesday night at a home in Long Beach.

Reporters at the scene tweeted that up to 10 people in total may have been shot. The Los Angeles Times reports that Long Beach fire spokesman Jake Heflin says firefighters arrived at the home around 10:44 p.m. on Tuesday to a scene “filled with chaos.”

The department says three men were dead and the nine others were injured. Their conditions weren’t immediately available.