A senior student from Archbishop Stepinac High School in White Plains is in critical condition after being involved in a serious motorcycle accident this morning.

Officials say the rider was an 18-year-old from the Bronx, and the only vehicle involved was a motorcycle.

Westchester County police say the accident happened around 8:30 a.m. on Wednesday, when he was exiting from the Bronx River Parkway onto the Cross County Parkway in Yonkers.

According to Archbishop Stepinac's principal, the student is in critical but stable condition.