Two plainclothes detectives from the Camden County (NJ) Police Department were ambushed and shot while sitting in an unmarked vehicle at a red light Tuesday evening. Authorities describe the wounds as "non-life-threatening." They are reportedly in stable condition.

"They were essentially ambushed," Camden County Police Chief Scott Thomson said of the attack at Broadway and Mount Vernon Street around 8:30 p.m. Authorities say two gunmen walked up and shot "between 10 and 25 rounds," including some that went through the vehicle's windshield, the chief said.

One detective managed to return fire at the gunman, who fled the scene, the chief said.

Thomson said police were checking with area hospitals for anyone arriving with gunshot wounds.

The female officer was shot in the hand, a police officer told the Courier-Post. No details about the other officer's injuries was available.

The shootings occurred on National Night Out, an annual celebration designed to build partnerships between police officers and the communities they serve. The Camden County Police Department was among those participating, with officers attending community events throughout the city.