According to the Tacoma News Tribune, Chyna J. Thomas — the 22-year-old sister of Boston Celtics star point guard Isaiah Thomas — was killed in an auto accident on Interstate 5 in Washington on Saturday morning.
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Isaiah Thomas's younger sister Chyna was killed in a car accident today in Washington state, a source close to the family confirmed.
— Adam Himmelsbach (@AdamHimmelsbach) April 15, 2017
Per the Washington State Patrol, the car was operating normally until it began to drift off the Interstate. The car eventually came to a stop when it hit a barrier off of the side of the road.
The report says that Thomas was not wearing a seat belt at the time of the accident.
Isaiah Thomas was the NBA's third leading scorer during the regular season. His Celtics are set to face the Chicago Bulls on Sunday in Round 1 of the Playoffs.