ROCKFORD, Ill. (WTVO) — Officials say four people are without a home after firefighters responded to a fire at 219 North Rockford Avenue Monday afternoon.

Authorities said there was significant damage to the lower and upper units of the building.

No one was injured.

Officials say they had the fire under control shortly after 2 p.m.

Investigators have still not determined what caused the fire. The damage was estimated at $40,000.