BROOKLYN - Witnesses say a bicyclist is dead after being struck by a truck.

The incident occurred around 10:25 a.m. at the intersection of Ocean Avenue and Church Avenue in Flatbush.

Police say the victim is a 57-year-old man.

Witnesses say the man had just started riding his bike when he tipped over. They say a box truck ran him over and killed him.

Police say the driver stayed on the scene and an investigation is underway.