A cyclist in her 40s has died after a serious crash in Baldock this morning (Friday, April 1).
The crash, which involved a cyclist and a lorry, took place at around 7.57am on Whitehorse Street (B656).
East of England Ambulance Service paramedics and the Malpas air ambulance rushed to the scene and the cyclist - a woman - was taken to Addenbrooke's Hospital, Cambridge.
Hertfordshire Constabulary has said that the woman has since died.
Police officers are appealing for witnesses.
Sergeant Nicholas Kane, from the Bedfordshire, Cambridgeshire and Hertfordshire Road Policing Unit, said: "I am appealing for anyone who was in the area at the time who may have witnessed the collision, or the events leading up to it or immediately after, to please get in touch as a matter of urgency.
"I would be especially keen to hear from you if you were driving in Whitehorse Street around the time specified and have a dash cam fitted to your vehicle.
"Please check your footage as soon as you can and get in touch if you have captured something that may assist with our enquiries."
The crash happened in Baldock town centre, near the B656 Royston Road/A507 Station Road junction.
Sergeant Kane urged anybody who is distressed by what they saw to self-refer to the Hertfordshire Partnership University NHS Foundation Trust (HPFT) online: https://www.hpft-iapt.nhs.uk/
The lorry driver stopped at the scene and is assisting the police, he said.
An East of England Ambulance Service spokesperson said: "We were called at 7.57am on Friday, April 1 to reports of a road traffic collision involving a lorry and a cyclist on Whitehorse Street in Baldock.
"An ambulance, a senior paramedic in a support vehicle and the Magpas Air Ambulance attended the scene.
"The cyclist, a woman in her forties, was transported by land to Addenbrooke’s Hospital, Cambridge for treatment."
Hertfordshire Constabulary said that witnesses with evidence can contact Sergeant Kane online (https://www.herts.police.uk/) or by phone on 101, quoting Op Takelma.
Anonymous witnesses reports can be made to CrimeStoppers on 0800 555 111 or online: https://crimestoppers-uk.org/
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