Eight people are homeless on Sunday after separate house fires in Ottawa's south and east ends.

The first fire happened just after 5:30 p.m. Saturday after a neighbour reported heavy black smoke at 3826 Navan Rd., just east of Mer Bleue Road.

The homeowner managed to rescue two pet dogs but the pet cat was not able to get out, fire officials said.

Four people are displaced by the fire, which began in the basement stairwell.

The cause is under investigation, officials said, adding the total damage is about $50,000.

Overnight fire forces second alarm

Ashmore Drive fire

A fire on Ashmore Drive around midnight on Jan. 19, 2014 forced firefighters to call a second alarm due to rising flames. (CBC)

The second fire happened just after midnight at 112 Ashmore Dr. after a neighbour reported flames visible from outside.

Firefighters reported flames coming from the basement and extending into the kitchen. A second alarm was called just after 12:30 a.m. as more firefighters arrived to help.

Nobody was home at the time of the fire, but four people are now homeless as a result of the damage. That total is estimated at $360,000 and the cause is also under investigation.

There were no injuries reported in either fire.