Chyna Thomas, the 22-year-old sister of Boston Celtics star Isaiah Thomas, was killed Saturday morning in a single-car crash on Interstate 5 in Washington.
According to the Washington State Patrol, Chyna Thomas was pronounced dead at the scene of the accident, which occurred on the shoulder of I-5.
The accident took place around 5 a.m. PT. The Washington State Patrol reported the vehicle initially was driving normally southbound but eventually tailed off.
“All of a sudden, it started to drift very casually onto the left shoulder,” State Patrol spokesman Trooper Nick King said.
The car traveled approximately 50 feet before crashing headfirst into a sign post. The Washington State Patrol reported Chyna Thomas was not wearing her seat belt.
The Celtics released a brief statement in response to the news.
Isaiah Thomas and the C’s are scheduled to play the Chicago Bulls in their NBA playoff opener Sunday night at TD Garden.
Thumbnail photo via Jason Getz/USA TODAY Sports Images