Parma, Ohio, police are looking for the person who called in an alleged hostage situation Sunday about 8:20 p.m.

The call came from an unidentified man who told police dispatchers that he had just shot his father and was holding his remaining family members hostage. The caller indicated that he was inside a residence on W. Ridgewood Drive, WKYC TV reports.

The call prompted an immediate response of Parma Police officers. In addition, it also prompted a callout of the entire Parma Police SWAT Team, which includes both tactical officers and the hostage negotiation team.

Parma Police officers responded and surrounded the residence and evacuated people in the immediate area.

After police arrived at the residence, the man on the phone threatened to shoot at police officers who were at the scene. At one point in the call, the man asked to speak with hostage negotiators.

Officers were able to determine that a man, 58, and a woman, 55, were inside of the home. Both residents were instructed to walk out of the home, which they did.