Ottawa firefighters tackle two-alarm house fire in Richmond

Firefighters had to evacuate a home in Richmond that was completely engulfed in flames after a floor in the burning structure collapsed Friday afternoon. 

Fire crews responded to the home just after 3 p.m. after a resident reported thick, black smoke coming from 27 Fowler St., Ottawa Fire Services spokeswoman Danielle Cardinal said. 

After the floor collapsed at the entrance of the home, all the firefighters who were in the home evacuated safely with no injuries. Fire officials say the blaze appeared to have started in the basement. 

The fire escalated to a two-alarm blaze at 4:02 p.m. The fire was declared under control by 5:16 p.m. 

There was no one inside the house and fire officials said there are no reported injuries. The fire displaced two adults and three children, who are being assisted by the Red Cross and the Salvation Army.

Fire crews will work into the evening to secure the site. An excavator was called in to demolish the remainder of the structure as it is no longer safe, fire officials said. 

The cause of the fire is under investigation.