A gunman opened fire on a party outside an apartment complex in Tulare, Calif., on Wednesday, killing one person and wounding five others, including a 7-year-old girl, according to the Tulare police.

The girl was being treated for multiple gunshot wounds at Valley Children’s Hospital, said Sgt. Ed Hinojosa, a police spokesman. Four other people were taken by ambulance to hospitals.

Little was known about the gunman, who opened fire around 10:20 p.m., Sergeant Hinojosa said. Dozens of people were gathered outside the apartment complex to celebrate the life of someone who had been killed in a car accident a few days ago, he said.

“Someone walked up or drove up and started shooting into the partygoers,” he said.

Tulare, in the Central San Joaquin Valley, is about 45 miles south of Fresno. It had a population of about 64,000 as of 2018.