A Dallas-area school district said Wednesday that law enforcement was responding to reports of an “active shooter situation” at a high school, AP reported.

Police said 4 were injured, 3 of them students, and 2 of these received gunshot wounds.

Arlington Police tweeted that they were searching for a suspect, 18 year old Timothy George Simkins.

Simkins is a reportedly a student at the high school, where the shooting broke out following a fight.

Police said they were "on scene at a shooting at Timberview High School" and were "doing a methodical search."

"We will be announcing a parent staging location soon once the location is identified."