A section of the M4 motorway in Berkshire has been closed in both directions following a collision, and the road is expected to remain shut for several hours. The closure affects the M4 between junctions J8/9 (Maidenhead) and J10 (Reading). The incident occurred around 9:30pm, and National Highways confirmed the closure, stating that a police investigation is ongoing. The road is expected to stay closed through the morning rush hour, which typically sees high levels of traffic. National Highways traffic officers are on site to manage the closure and assist with diversions. Drivers have been directed to alternative routes to avoid the affected area. Westbound traffic should look for the hollow square symbol on road signs and exit at J8/9 to take the A404M. Eastbound drivers should follow the hollow circle symbol and exit at J10 to join the A329M heading northbound. The collision has caused significant disruption, with traffic being rerouted to manage the flow and ensure safety. National Highways and local authorities are working to resolve the situation as quickly as possible. Updates on the closure and expected reopening time will be provided as they become available. Metro, a local media outlet, has reached out to the police and ambulance services for further details and comments about the incident. More information may be released as the investigation continues and the situation develops.