At least four people died and nine were wounded in a high school shooting in the US state of Georgia on Wednesday, law enforcement authorities said, with a suspect taken into custody.

After the latest chapter of America’s gun violence crisis — nearly 400 mass shootings this year alone, by one tally — people gathered at a sports field outside Apalachee High School, some forming a circle with their arms linked.

The Georgia Bureau of Investigation said four people had been killed. There was no immediate word on a motive.

“An additional nine were taken to various hospitals with injuries. Suspect in custody and alive. Reports that the suspect has been ‘neutralized’ are inaccurate,” the bureau said in a social media post.

Earlier, school authorities were reported to have sent a message to parents saying they were enforcing a “hard lockdown after reports of gunfire.”

The shooting occurred near the town of Winder, about 45 miles (70 kilometers) northeast of Atlanta, the state capital.

US President Joe Biden said he was mourning the dead.

Speaking at a campaign event in New Hampshire after the shooting, Vice President Kamala Harris said it was time to end the “epidemic of gun violence.”