A teenage cyclist has died and another has been injured in a crash between the bike they were travelling on and a lorry.
It happened on Station Road in North Hykeham, near Lincoln, on Wednesday afternoon.
A 15-year-old girl was pronounced dead at the scene and a boy, 14, was taken to hospital with serious but not life-threatening injuries.
Lincolnshire Police has appealed for witnesses and information.
Insp Ian Richardson said: “This devastating incident has not only had a major impact on the families of these teenagers but it has shocked the community.”
He added: “We would ask people not to speculate while investigations continue.”
Emergency services, including an air ambulance, attended the scene of the crash.
Jo Tunnicliffe, head teacher at North Kesteven Academy, the school attended by the girl, said: “Our thoughts today are with the student’s family and all her friends and teachers.”
She added the school community was also thinking of the family and friends of the injured boy, who attends the nearby Sir Robert Pattinson Academy.
Extra support has been brought in for pupils at both schools.
Rector of Hykeham Rev Peter Collins is one of those involved.
“It’s very difficult to get your head around what’s happened, but by just being there and talking you can at least let them know you are with them,” he said.
“I’ve offered both schools the use of All Saints Church as a place to go, reflect and remember.”
Dale Hardy, head teacher of Sir Robert Pattinson Academy, said they were holding a parents’ evening at the time.
“We went out to see if we could help,” he said.
The school was doing everything possible to support pupils, he added.