PITTSBURGH (MEDIA GENERAL/AP) – Four people, including two juveniles, were injured in a shooting Monday night following the city of Pittsburgh’s Fourth of July celebration.

Investigators are looking for two young black men, one dressed in black and the other wearing a white dress shirt over another white shirt.

Police say they were arguing when shots were fired around 10:30 p.m., as tens of thousands of people were leaving the downtown fireworks display that ended 25 minutes earlier.

A woman was shot in the head and was in critical condition and a man was shot in the leg. Police say a boy and girl were each also shot in the leg.

Police said Tuesday a teen taken into custody following the shooting isn’t involved.

Department spokeswoman Sonya Toler says the teen whose arrest was reported by WPXI-TV was charged in a separate incident.