Six Philadelphia police officers were shot while serving a warrant in the city’s Nicetown section on Wednesday afternoon.
Another officer was injured in a car crash while heading to the scene.
Sources say the suspect was live-streaming some of the shootout.
The officers were taken to local hospitals.
Police say their injuries are not life-threatening.
The Philadelphia police commissioner Richard Ross tells the Philadelphia inquirer two officers remain trapped inside the house.
No word on the identity of the suspect. Negotiators are trying to contact him.