On Monday, six students were shot and injured at a park near their school. The second incident happened Friday when three students were shot in their high school’s parking lot.

The Aurora Police Department said on Twitter the students who were shot Friday outside of Hinkley High School all made it to the hospital. No other details were immediately available.

Denver’s KCNC-TV obtained cell phone footage of the shooting that the station said was taken from a car in the parking lot as shots were being fired. A young person inside the car can be heard saying “Oh, no. No, no, no,” and crouching to avoid shots.

Polis said he was thinking about the people injured and currently being treated in the hospital.

“We as a state have to redouble our efforts on public safety,” Polis said, adding that “with the two shootings in Aurora we are going to have a renewed focus on youth violence.”

For more reporting from the Associated Press, see below.

Nearly two hours after the Friday shooting, yellow crime tape surrounded the parking lot and anxious parents waited outside the high school’s campus to be reunited with their children.

As students were allowed out of the building, television images showed them walking calmly and hugging parents in parking lot on the other side of the school from the parking lot where the victims were shot.

In Monday’s shooting, the six students from Aurora Central High School were the victims of a drive-by shooting and police have not arrested anyone yet. The two schools are 3 miles (4.8 kilometers) apart.

The victims in Monday’s shooting, boys and girls ranging in age from 14 to 18, were all expected to survive but police chief Vanessa Wilson said Tuesday that two of them had “significant” injuries and faced long recoveries.

Numerous shell casings fired from different guns were found at the scene of Monday’s shooting and it is possible some rounds were fired by someone on foot, police said. Police have said they have located one of two cars involved in that shooting.

Police Chief Vanessa Wilson said after Monday’s shooting that everyone should be outraged by gun violence, which she called a public health crisis.

“There is a violence crisis across the nation right now, and so I think we all need to pay attention,” she said.