UPDATE: 4:00 a.m.
A second alarm house fire was reported at 1:23 Wednesday morning on Quincy's southwest side.
A three-family residence at 648 Ohio was fully engulfed in fire.
Quincy Fire Chief Joe Henning says everyone made it out safely and there were no injuries.
"Upon arrival, the incident commander said that he had heavy fire on the first floor and fire started to show on the second floor," Henning said.
Officials say the fire started on the first floor and quickly spread to the second third.
"We were sending fire crews to the second floor," Henning said. "At that point the fire spread significantly to the point the decision was made to pull everybody out to go defensive. Which means we stay outside and put water on the fire until we get the fire knocked down."
The type of structure presented a challenge to those fighting the flames.
"This is an aluminum-sided building, and the entry (electric) cable had energized the aluminum siding of the building," Henning said. "We had to pull back and wait for Ameren to shut off power to the building."
All on duty firefighters responded to the fire. Off-duty firefighters were brought in to man the fire stations.
The American Red Cross was called to help the three families displaced by the fire.
The cause of the fire is unknown at this time. An investigation team is en route.