Heavy snow appears to have contributed to a partial roof collapse Saturday at a Smithtown bowling alley, Suffolk police said.

There was no one inside Smithtown Lanes, 200 Landing Ave., at the time of the collapse, according to police.

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Police and the Smithtown Fire Department responded about 4:30 p.m. to a call about a center portion of the roof collapsing. Suffolk Water Authority workers also were summoned to shut down a water leak, police said.

The fire marshal was at the scene Saturday night, investigating the structural integrity of the rest of the roof.

Fire Department officials were not immediately available for comment. Smithtown received 27 inches of snow in the blizzard, according to the National Weather Service.