Montgomery County authorities are investigating the fatal shooting of a 55-year-old man inside a Collegeville home late Saturday night.

Initial reports are that the gunshot victim forced his way into the home on East Third Avenue and was shot by one of the residents, according to the district attorney and Collegeville police.

The victim’s name was being withheld pending family notification. An autopsy was planned. The man was pronounced dead at the scene.

No arrests had been made, according to a spokesperson for the district attorney.

Collegeville police responded to a report of a shooting at the residence at 11:30 p.m. Saturday.

Authorities ask that anyone with information contact Collegeville police at 610-489-0192 or the Montgomery County Detective Bureau at 610-278-3368.