A knife-wielding man suspected in a “domestic incident” was arrested early Saturday morning after he barricaded himself inside a burning Islip house, which he allegedly set on fire once cops were called, Suffolk County police said.

Third Precinct officers responded to the domestic incident call at a home on Main Street at 1:36 a.m., and arrived shortly before the suspect, 45-year-old Peter Marren, allegedly set the house on fire and barricaded himself inside, police said.

Two officers, along with a Third Precinct patrol sergeant, entered the house despite the flames and attempted to talk Marren into coming out, police said.

Marren, who police said was holding a knife and threatened to harm both himself and the officers, would not comply, according to a police news release.

Emergency Service Section officers also responded to the call and were able to help responding cops take Marren into custody without force.

The Islip Fire Department responded and extinguished the blaze, police said.

The two officers and sergeant involved in the initial response were all treated at Southside Hospital in Bay Shore for smoke inhalation. Marren was transported to the same hospital for non-life-threatening injuries, which a police spokeswoman described as a self-inflicted wound.

Marren was charged with third-degree arson and criminal contempt. An arraignment date was not available.

It’s unclear what prompted police to be called to the house.

A Suffolk police spokeswoman said by rule police do not divulge information regarding domestic incidents.

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