MONTEREY PARK, Calif. (AP) — Authorities say the suspect in a California dance club shooting that left 10 dead has shot and killed himself.

Los Angeles County Sheriff Robert Luna said Sunday the man killed himself as police officers closed in on the van he used to flee the scene of an attempted second shooting.

Luna identified the suspect at 72-year-old Huu Can Tran.

He said no other suspects are at large.

LA County Sheriff Robert Luna said the shooting 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, a man with a gun entered the Lai Lai Ballroom in nearby Alhambra.

Authorities believe the two events are connected. They offered no details about a possible motive.

The incident in Alhambra “may be related,” Luna said. “We’re not quite there yet, but it’s definitely on our radar screen.”

By midday, police in tactical vehicles and bomb-squad trucks surrounded a white van in a parking lot 22 miles (35.4 kilometers) from Alhambra in Torrance, another majority Asian community.

Hours earlier, Luna said authorities were looking for a white van after witnesses reported seeing the suspect flee from Alhambra in such a vehicle.

“We believe there is a person inside of that vehicle. We don’t know their condition, but we’re going to handle that in safest manner that we possibly can and try and identify that person. Could it be our suspect? Possibly,” Luna said.

In response to a question, Luna said it was possible that the person barricaded in van was dead.

Members of a SWAT team entered the van a short time later and looked through its contents before walking away. It was unclear what they found.

Luna said it’s possible the suspect could be inside the van, but he couldn’t confirm as detectives continue to investigate.

The name of the suspect isn’t being released yet, Luna said during the conference, saying they believe it will inhibit their ability to arrest the man.

The sheriff declined to say what type of gun was recovered in Alhambra. He said investigators believe the gun used in Monterey Park was not an assault rifle.

The massacre, which sent fear through Monterey Park and Alhambra’s large Asian American communities, was the nation’s fifth mass killing this month. It was also the deadliest attack since May 24, when 21 people were killed in an elementary school in Uvalde, Texas.

Monterey Park is a city of about 60,000 people on the eastern edge of Los Angeles and is composed mostly of Asian immigrants from China or first-generation Asian Americans. The shooting happened in the heart of its downtown where red lanterns decorated the streets for the Lunar New Year festivities. A police car was parked near a large banner that proclaimed “Happy Year of the Rabbit!”

The celebration in Monterey Park is one of California’s largest and had attracted tens of thousands throughout the day.

Two days of festivities, which have been attended by as many as 100,000 people in past years, were planned. But officials canceled Sunday’s events following the shooting.

Tony Lai, 35, of Monterey Park was stunned when he came out for his early morning walk to learn that the noises he heard in the night were gunshots.

“I thought maybe it was fireworks. I thought maybe it had something to do with Lunar New Year,” he said. “And we don’t even get a lot of fireworks here. It’s weird to see this. It’s really safe here. We’re right in the middle of the city, but it’s really safe.”

Wynn Liaw, 57, who lives about two blocks from the Monterey Park studio, said she was shocked that such a crime would happen, especially during New Year’s celebrations.

“Chinese people, they consider Chinese New Year very, very special” — a time when “you don’t do anything that will bring bad luck the entire year.”

She took a picture of the activity outside the studio to send to relatives and friends in China “to let them know how crazy the U.S. is becoming with all these mass shootings, even in the New Year.”

A victim resource center was established to help family and friends of the victims, as well as survivors.

In a statement tweeted by Tom Ahern, deputy director of news affairs and communications for the Chicago Police Department, said CPD is closely monitoring the events in California and stands with those affected.

“While there is no actionable intelligence here at this time, CPD will adjust resources as necessary surrounding the official Lunar New Year celebration events,” the statement read.

An Associated Press/USA Today database on mass killings in the U.S. shows that 2022 was one of the nation’s worst years in terms of mass killings, with 42 such attacks — the second-highest number since the creation of the tracker in 2006. The database defines a mass killing as four people killed not including the perpetrator.

The latest violence comes two months after five people were killed at a Colorado Springs nightclub.

President Joe Biden and Attorney General Merrick Garland were briefed on the situation, aides said.

The shooting occurred at Star Ballroom Dance Studio, a few blocks from city hall on Monterey Park’s main thoroughfare of Garvey Avenue, which is dotted with strip malls of small businesses whose signs are in both English and Chinese. Cantonese and Mandarin are both widely spoken, Chinese holidays are celebrated, and Chinese films are screened regularly in the city.

The business offered dance lessons from tango to rumba to the fox trot, and rented its space for events. On Saturday, its website said it was hosting an event called “Star Night” from 8 p.m. to 11:30 p.m.

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Associated Press writer Julie Watson in San Diego contributed to this report.