The case of a woman found dead Sunday in an east Allentown, PA, recycling bin took on a new level of mystery Tuesday night when a city detective investigating her shooting was himself shot, reports the Morning Call .

The detective, whose name was not released, was shot about 9:45 p.m. as a police Emergency Response Team tried to serve a search warrant on a man at 616 N. Godfrey St., police Chief Keith Morris said.

"As members of the ERT were approaching the door, they were met with gunfire," Morris said. "One of our officers was struck. There was an exchange of gunfire at that point in time. The returned fire struck him [the gunman] as well."

Then the gunman barricaded himself inside for three hours before police stormed the house and took him into custody, the chief said. Both the detective and the gunman were hospitalized, he said.

The five-unit apartment house where the gunman was arrested is a block south of East Tilghman Street and little more than two blocks from East Tilghman and Hart streets, where the unidentified woman's body was found 2:45 p.m. Sunday.

The detective, an officer in his 30s, was taken to Lehigh Valley Hospital-Cedar Crest with a wound to his left arm, according to emergency radio reports. Morris said he was in stable condition and was later released.