OPP have released the identity of a woman killed in a motorcycle crash on Dorchester Road, near the 401 on Monday.

The crash happened around 1:25 p.m. Monday between a three-wheeled motorcycle and a transport truck on Dorchester Road north of the 401.

A female passenger had no vital signs when emergency crews got to her.

The 77-year-old female passenger of the motorcycle was pronounced dead at the scene. She has been identified as Margaret Alexander, from St. Marys, Ontario.

The 80-year-old male driver of the motorcycle was transported to hospital in critical condition.