3 Winter Haven families displaced by massive Labor Day fire

WINTER HAVEN, Fla. - Three families have been displaced after a massive fire broke out in Winter Haven on Labor Day. 

The Winter Haven Fire Department responded to a structure fire in a multi-story building on Ave. C SW shortly after 3:30 p.m. on Monday, officials said. There are three units in the building. 

When firefighters arrived, they found an upstairs unit with a fire involved in the kitchen area. The fire was contained. 

The cause of the fire has not yet been determined. 

There were no injuries. 

This is a developing story.