A cyclist who died after a crash on the Dronfield bypass did not have any identification on him, police have revealed.
The incident happened on the southbound carriageway of the A61 at about 3.20pm on Thursday.
It involved a Citroen C3 and a cyclist who was riding a black and yellow Carrera TDF bicycle.
The cyclist suffered serious head injuries and was taken by air ambulance to Northern General Hospital, in Sheffield, where he later died.
A spokesman for Derbyshire police said: “The cyclist did not have any identification on him and police are appealing to anyone who may be unsure of the whereabouts of a friend or family member who went out for a bike ride and has not returned as expected.
“The man was white, aged about 55, 5ft 6in to 5ft 8in in height and with short, grey hair. He had no tattoos but had a small scar to his abdomen. He was wearing black lycra shorts and red cycling shoes.
“His bike had drop down handlebars, a black saddle and black Carrera wheels. A small black and white saddle bag was attached to the rear of the seat.”
Anyone with information on the identity of the man should call Derbyshire police on 101, quoting incident 451 of July 31.