The M40 is closed southbound between Junction 1a (M25) and Junction 1 (Denham) following a police-led incident, with drivers facing delays of around 90 minutes and tailbacks of four miles.
National Highways reported the closure early on 9 November, stating that the incident was first reported at 5.45am. Traffic officers are on scene, and vehicles caught within the closure are being released from the rear of the incident.
Delays and congestion
National Highways said in a statement: "#M40 southbound near #GerrardsCross within J1A Road remains closed due to a @ThamesVP incident." The agency added: "Traffic caught within the closure is being released from rear of the incident. Delays building, currently 90 mins, 4 miles of congestion."
Earlier, National Highways said: "The M40 is closed southbound between Junction 1a (M25) and J1 (Denham) due to an ongoing Thames Valley police led incident that was reported at 05:45. Traffic Officers are on scene to assist with strategic closures on the approach."
Details still limited
Thames Valley Police has not provided further details about the incident. Motorists are advised to expect significant disruption on the approach to the closed section.
