Police are investigating the circumstances involving a car crash Friday morning in which a car struck a building in East Islip and the driver died.

Kerri Becvar, 23, of East Islip, was driving south on Carleton Avenue at 8:42 a.m. when her 2002 Honda “left the roadway and struck the AmVets building,” just north of Wall Street, Suffolk County police said in a news release.

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Becvar was taken to Southside Hospital where she was pronounced dead, police said.

Police said it was not immediately clear if the driver was killed by the impact of the crash or suffered a medical episode before the accident. The cause of death will be determined by the Suffolk County medical examiner.

No one was in the building when the car struck it.

Police said a Town of Islip inspector will determine the extent of damage to the building.

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Third Squad detectives urge anyone with information about the accident to call 631-854-8352.