According to Gwent Police, officers were called to the A48 at approximately 5:55 a.m. following reports of the collision. The cyclist was taken to hospital with life-threatening injuries, while the road remained closed as emergency crews treated the scene and investigators began examining the circumstances surrounding the crash.
Police have appealed for witnesses and are particularly keen to hear from anyone who saw the cyclist before the collision or who may have captured the incident on dashcam, CCTV, or mobile phone footage. Authorities are urging anyone with relevant information to come forward as the investigation continues.
The collision caused lengthy traffic delays around Chepstow, with motorists advised to avoid the area and seek alternative routes while recovery and investigative work was carried out. Congestion affected surrounding roads as commuters faced extended journey times.
The investigation remains ongoing, and no further details regarding the cause of the collision have been released. Gwent Police are expected to provide additional updates as enquiries progress.