A gunman killed 10 people at a ballroom dance studio amid Lunar New Year celebrations and then tried — but failed — to target a second dance hall, according to authorities in the Los Angeles area.

Los Angeles County Sheriff Robert Luna said the shooting late Saturday at the Star Ballroom Dance Studio in Monterey Park left five women and five men dead and wounded another 10 people. Then 20 to 30 minutes later, the gunman entered the Lai Lai Ballroom in nearby Alhambra.

They offered no details about a possible motive.

Luna did not have the exact ages of the victims but said they all appeared to be over 50. Seven of the wounded people remained in the hospital.

Police announce that the shooter was found dead of a self-inflicted gunshot wound inside the van that he fled after a second shooting was thwarted. Los Angeles County Sheriff Robert Luna identified the man as 72-year-old Huu Can Tran and said no other suspects were at large. Speaking at an evening news conference, Luna said the motive for the attack remained unclear.

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