A 62-year-old bicyclist was killed Monday in Larimer County when his bicycle collided with the passenger-side of a semi-truck.

The fatal collision happened at about 11:50 a.m. at Berthoud Parkway and Bunyan Avenue in Berthoud, according to the sheriff’s office.

The bicycle and truck were both southbound when the fatal collision happened. The bicyclist is from Fort Collins. The 71-year-old truck driver, from Fort Morgan, was not injured.

No other vehicles were involved. Investigators do not suspect drugs, alcohol or speed as factors in the incident.

Berthoud Parkway was closed for about five hours after the collision. An investigation is ongoing.

Anyone who witnessed the incident, who has not talked with investigators, is asked to call the sheriff’s office at 970-498-5530.