The nation was rocked by another mass shooting on Tuesday morning, this time at an elementary school in northern California.

Daily Mail reported that at least three people were killed at Rancho Tehama elementary school when a gunman opened fire at around 8am. Multiple children were airlifted to the hospital, but the ages of the deceased victims has not yet been revealed. The shooting ended when the gunman was shot dead by police.

Officials have said that a six-year-old child was shot twice and another, whose age is not known, suffered a gunshot wound to the leg.

Witnesses recounted hearing “hundreds” of rounds as the shooting unfolded. The shooter is first believed to have opened fire at a home then driven to the school where they carried on spraying bullets before being taken down.

One deputy was visibly shaken as he talked to reporters about the incident.

“We had multiple shots fired in Rancho Tehema, that evolved to multiple victims and multiple shots at the school,” he said. “I am told the suspected shooter is deceased by law enforcement bullets. I don’t have a list of victims, I don’t know how many victims. I know of at least three deaths.”

He added that a “number” of injured victims who had been removed by helicopter and ambulance and said all of the surviving children and staff are now safe.