PHILADELPHIA — (CNN) Philadelphia police say they’re looking into a report that the man accused of trying to assassinate a police officer last week had ties to a group with radical beliefs.
Police issued a statement Sunday saying a citizen had stopped a Philadelphia police officer on the street and claimed the suspect, Edwin Archer, had “an affiliation to a group with radical beliefs.”
The statement doesn’t name the group or say where it is located or whether the alleged association is past or present.
The department and the FBI are looking into the claim “in an effort to verify the credibility of the information given,” police said.
Archer allegedly told police after he ambushed Officer Jesse Hartnett that he had pledged allegiance to the ISIS terror group, according to Capt. James Clark, commander of the Philadelphia Police Department’s homicide unit.
Hartnett was shot three times in the arm Thursday while sitting in his patrol car.
Images released by police from surveillance video show the gunman — wearing an ankle-length, white garment — on a crosswalk taking aim and firing at the patrol car at close range.
In one photo, the shooter is standing next to the car with his arm through the lowered driver’s side window, close enough to be shooting at point-blank range.
Despite bleeding heavily, Hartnett was able to get out of his car and shoot Archer, whom other officers then arrested, authorities said.
Hartnett survived the attack with what police Commissioner Richard Ross Jr. described as “very serious injuries.”
Police said Archer was armed with a Glock 17 pistol stolen from a police officer’s home in 2014.
According to Clark, Archer told investigators: “I follow Allah. I pledge my allegiance to the Islamic State and that’s why I did what I did.”
The shooting in Philadelphia is the fourth attack in the United States believed to have been inspired by ISIS, including the December shootings that left 14 dead in San Bernardino, California, the shootings outside a cartoon contest in a Dallas suburb in May in which images of the Islamic Prophet Mohammed were being displayed, and a hatchet assault on four police officers in New York in October 2014.
Officials have said they do not know whether the latest attack was part of a broader conspiracy or whether Archer had contact with terrorists.
Philadelphia police said all officers will continue to work in pairs until further notice.
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