A Croton-on-Hudson doctor was killed and his two children were injured Thursday after a tree came crashing down on their moving car in Cortlandt.

Police say 55-year-old Dr. John Corser was traveling south on Furnace Dock Road around 10:30 a.m. when the tree fell. Police say he was killed instantly. His two children, an 8-year-old boy and 4-year-old girl, sustained minor injuries and were taken to the hospital.

Corser was the chief of medicine at Metropolitan Hospital in New York City. The hospital released a statement saying they are deeply saddened by Dr. Corser's death.

It is believe weather played a role in the tragedy. Police say rain probably loosened the roots of the large tree and the high winds helped bring it down.