PITTSBURGH -- A Manchester man is being treated at Allegheny General Hospital Thursday morning for a gunshot wound suffered when his brother mistook him for an intruder overnight at their home on Pennsylvania Avenue in Manchester.

According to Zone 1 police, the victim -- in his mid 20s -- didn’t want to wake up anyone in the house shortly after 2 a.m. So he tried to enter their house in the 1400 block of Pennsylvania Avenue through a basement window.

His brother -- in his mid 30s -- heard a noise, got his registered .45-caliber pistol and fired a shot at who he thought was an intruder.

He hit his brother in the left arm before he realized who he was. The victim was rushed to the hospital. Officials said his injury is not life-threatening.

Police confiscated the weapon and said it’s doubtful any charges will be filed.