WPVI-TV ( http://bit.ly/OtPTv8) reports that a man flagged down an officer in the Frankford section of northeast Philadelphia shortly after 3 a.m. Sunday.
He said he had been robbed of $30 by two males and a female armed with a gun.
Authorities said two officers later saw the three suspects running down the street and chased them.
During the pursuit, officials said, one of the males turned and pointed a gun at officers.
Police say both officers fired and hit one of the males in the arm.
He was taken to Aria-Torresdale Hospital and reported in good condition. The other two were also taken into custody.
Information from: WPVI-TV, http://abclocal.go.com/wpvi