Four people have died after two planes crashed in Winter Haven, Florida, on Tuesday, the Polk County Sheriff's Office said in a statement on its website.

All the people on the planes were killed.

The accident happened on a local lake, the wreckage of the planes is in the water, but the bodies of the dead have already been taken out.

Three of dead have been identified, and the identity of the last victim is still being ascertained.

The Polk County Sheriff's Office is investigating the cause of the crash.