A pub was destroyed by a fire that broke out early Tuesday morning in Almonte, Ont., a small town southwest of Ottawa.

The first 911 calls came in at about 4:15 a.m. Tuesday, reporting flames and smoke at Moose McGuire's at 385 Ottawa St. in Almonte, according to Lanark County OPP.

Ottawa Street was closed for several hours between Paterson Street and Industrial Drive as volunteer firefighters tried to put out the flames. The street was reopened at about 11 a.m.

The Mississippi Mills Fire Department was the first to respond and requested assistance from the Ocean Wave Fire Company in nearby Carleton Place, Ont.

"It can't have been easy for them in these circumstances," said OPP spokesman Const. David Bird, referring to the first winter storm of the season that began about four hours before the fire started and continued throughout Tuesday.

The cause of the fire has not been determined and a damage estimate was not yet available Tuesday, Bird said.

No injuries were reported.