QUEENS, N.Y. - A Delta employee dies during an accident while working at Kennedy Airport Wednesday.

The man was working as "tug operator" at Terminal 4 when the accident happened.

A "tug" is vehicle that either pushes planes away from their gates or pulls luggage up to planes.

Port Authority officials say he was hit by one of the vehicles while working.

In a statement, a Delta spokesperson said, "We are extremely saddened by the passing of a JFK below-wing employee and have extended our full support to his family and colleagues."