A North Knoxville duplex fire has displaced two families on Saturday night.
The duplex fire located on Clover Road occurred just after seven Saturday evening.
A family living in the upper unit said they heard their fire alarm going off. The father said flames were coming from the edge of the roof.
City of Knoxville Firefighters got the fire under control shortly after they arrived.
The American Red Cross is helping the two families find temporary housing.
Knoxville Fire Department said it's still investigating the cause of the blaze.