6/13 5:28 AM PT -- 6/13 -- According to Vermont State Police ... Treat got into a two-vehicle accident in the town of Dorset Monday afternoon. The driver of a Honda Element SUV was cruising down a street when he turned left into a parking lot and collided with Treat, who was thrown from his motorcycle and critically injured. Police said Treat -- wearing a helmet -- was unable to maneuver out of the way before the crash.
Treat was airlifted to New York's Albany Medical Center, where doctors pronounced him dead. The other motorist was treated for minor injuries at the scene and released. He has not been charged or cited ... although VSP investigators are still in the early stages of their probe.
Treat Williams, whose career accomplishments include "Hair" and "Everwood" has died as the result of a motorcycle accident.
Williams' agent, Barry McPherson, tells People, "He was killed this afternoon. He was making a left or a right [and] a car cut him off. I'm just devastated. He was the nicest guy. He was so talented."
People reports the crash happened Monday in Dorset, Vermont.
Williams' career spanned decades, with appearances on "Blue Bloods" as recent as this year. He appeared in nearly 100 episodes of "Everwood" in the early 2000s as Dr. Andrew Brown ... and played Berger in "Hair" in 1979.
Williams was a three-time Golden Globe nominee, for his work on "Hair," "Prince of the City" and "A Streetcar Named Desire." He also received a Best Actor Emmy nomination for his work in "The Late Shift" in 1996.
He is survived by wife, Pam Van Sant, and their two kids, Gill and Ellie.
Treat was 71.
RIP
Originally Published -- 6/12 7:33 PM PT