PLAINVILLE, Conn. (WTNH) — A motorcyclist suffered serious injuries as a result of a crash on I-84 East in Plainville Sunday night, according to state police.

The collision occurred just before 10 p.m. State police said that a Lexus LS 400 was traveling on I-84 East, west of exit 34, in the far left lane. The motorcycle, a Harley-Davidson, was traveling adjacent to the Lexus.

For an unknown reason, police said that the motorcycle served into the left lane and side-swiped the Lexus. The impact caused the motorcyclist to lose control of the Harley, which traveled across the left lane and into the left shoulder, where it collided with a concrete barrier.

At this point, police said the motorcyclist was thrown off his vehicle. The driver came to a final rest on the left shoulder. The Lexus came to a controlled stop on the left shoulder as well, officers stated.

The motorcyclist sustained serious injuries from the collision and was transported by EMS to Saint Francis Hospital. The Lexus driver was uninjured, but their car was towed from the scene along with the motorcycle due to the damage.

State police said that the crash is still under active investigation. Any witnesses to the collision are asked to contact Trooper Michael Dean by calling (860) 534-1098 or emailing michael.dean@ct.gov.