A man who barricaded himself inside his Mahwah home for most of the day was found naked sitting calmly on the couch of his next door neighbor.

A Mahwah man is taken from his residence after holding police at bay for several hours (Mayor Bill Laforet)

Concerned residents at the Society Hill condominium complex had called police around 9:30 a.m. after seeing the gas mask. The man briefly opened his door when police knocked, then closed it and locked it with a deadbolt.

Besides the note and gas mask, police also found a plastic baggie with bullets and a muzzle for a rifle near the front door. They also were concerned he might have hazardous materials in the unit.

The man was found Tuesday afternoon sitting naked on the couch of a neighboring apartment that he apparently broke into. 7 ABC reports the Bergen County SWAT and Hazmat teams are at the home on Juniper Lane.

Laforet wrote that the man was hospitalized for evaluation.