Two men were seriously injured Friday afternoon when a motorcycle struck a bicycle on Route 161 in Stockholm.

Maine State Police responded to the crash around 3 p.m., according a news release from Corporal Dennis Quint.

Trooper Nathan Desrosier determined that 59-year-old David Wakana of Caribou was riding his bicycle south on Route 161. Wakana told police that he had signaled to turn left onto Lake Street but saw a car approaching in the northbound lane.

Sixty-four-year-old Jeffrey Gregory of Naples was riding his 2016 Indian Springfield motorcycle and came up behind Wakana. Police say Gregory tried to pass Wakana on the right but struck the bicycle from behind. The motorcycle went off the right side of the road and into a ditch.

Both Wakana and Gregory were transported to Cary Medical Center by Caribou Fire and Ambulance with serious but not life-threatening injuries, Quint said.

Police say Wakana was wearing a helmet, while Gregory was not. Gregory's motorcycle was seriously damaged and removed from the accident scene by Mark's Towing Service of Caribou.

Assisting at the site were Warden Ryan Fitzpatrick of the Maine Warden Service, Sgt. Erica Pelletier and Deputy Jesse Belanger of the Aroostook County Sheriff’s Office, and Ranger Will Barnum of the Maine Forest Service.