A former downtown Ottawa restaurant was damaged for the third time in less than a year by a kitchen fire.

Firefighters responded to the old Famous Frenchy's at 506 Rideau St. at about 9:43 a.m. Tuesday for a fire on the main floor.

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The former Famous Frenchy's restaurant is now known for three fires in 11 months, which is forcing students out of their apartments. (CBC)

They reported the fire was knocked down less than 10 minutes later with no injuries.

There was heavy smoke damage throughout the restaurant, which is currently closed for renovations. There was minor smoke damage to apartments above the restaurant, firefighters said.

It is not yet known if anyone will be temporarily homeless.

Ottawa police also closed Rideau between Cobourg and Augusta streets for 90 minutes due to the fire. The street has since reopened.

This comes 10 months after a fire in the same building left five students temporarily homeless, and 11 months after another fire at the building left six students temporarily homeless.

The three-storey building features a restaurant on the main floor and two floors of apartments units above.

There were no injuries reported and damage is estimated at $40,000. The cause is under investigation.