Two accidents were reported at about 5 p.m. Monday in Aberdeen and the Pylesville area, one involving a 14-year-old boy hit by a car and the other involving a man who suffered a bicycle injury.
The bike accident was on Route 165 near Clermont Mill Road, Harford County Sheriff's Office spokesman Eddie Hopkins said.
The bicyclist was "reportedly going down the hill and lost control and ran off the road and crashed," he said.
The man, who was in his 60s, was flown by Medevac to a regional trauma center, according to the Harford County Volunteer Fire & EMS Association's Facebook page.
Jarrettsville Volunteer Fire Company responded to the incident, Hopkins said.
At about the same time, a 14-year-old boy was hit by a 1993 Dodge at West Bel Air Avenue and Holloway Lane, Aberdeen police spokesman Fred Budnick said.
The boy was taken to Upper Chesapeake Medical Center with minor injuries, Budnick said.
The vehicle was driven by a person from Pylesville.
"The cause appears to be pedestrian error," Budnick said.