Hertfordshire Police have appealed for a cyclist who may have information that could assist them into an investigation into the death of another bike rider earlier this month to come forward.

Charity worker Mark Greenwood from Redbourn, Hertfordshire died on Thursday 9 January following a collision at around 6.25pm that evening with a Volkswagen Golf on Redbourn Road, which runs between the village and St Albans.

A 24-year-old man was arrested on suspicion of causing death by dangerous driving and has been bailed until 7 April.

PC Dave Clarke from Hertfordshire Police’s collision investigation unit said: “Following an initial appeal about the collision a number of people have contacted us and we are now aware that another cyclist passed Mark prior to the collision.

“This cyclist stopped on Punchbowl Lane to deal with a puncture before going on his way. I would like to appeal to this man, who would not have known the collision occurred, to contact me.”

Anyone with information is requested to contact Hertfordshire Police on the non-emergency number, 101.

Following Mr Greenwood’s death, St Albans Cycle Campaign repeated calls for conditions to be made safer for cyclists on Redbourn Road.

Committee member Mike Hartley told The Herts Advertiser: “We have supported local councillors’ efforts to reduce the speed limit on the road.

“We have also submitted a request to the county council for conversion of the footway along Redbourn Road into a shared pedestrian and cycle route and are awaiting their response.

“We want to see something done as soon as possible to avoid more nasty things happening and to encourage cycling.”

Mr Greenwood’s partner, Susie Ullman, told the newspaper after his death: “Mark was my life partner and heart friend. We’d known each other for 38 years and he was like a father to [her son] Jamie.

“We’re left with the memory of him. He’s left behind something that no-one else will fill. He looked after me. There’s no one bad memory of this beautiful man. He’s irreplaceable.”