**Major Traffic Delays on M4 Near Swansea Following Serious Collision**

Motorists on the M4 faced significant disruption today following a serious road accident near Swansea that brought eastbound traffic to a near standstill. Emergency services and traffic officers responded to the incident, which resulted in the closure of at least one lane, causing lengthy tailbacks and delays for those travelling through the Briton Ferry area.
The collision was first reported in the late morning, with official sources stating the incident occurred between Junction 42, connecting with the A483 at Swansea East and Briton Ferry, and Junction 41 at the A48 Pentyla-Baglan Road. Police, paramedics, and Highways patrol teams attended the scene to manage the situation and begin the process of recovering the vehicles involved.

As of early afternoon, travel times for eastbound motorists had increased by up to 15 minutes, with congestion stretching several miles from the site of the crash. Drivers were advised by Traffic Wales to consider alternative routes or delay their journeys until the scene was cleared and normal traffic resumed. However, due to the busy nature of this key stretch of the M4, significant disruption was anticipated throughout much of the day.

Commuters attempting to reach Swansea and the surrounding Neath Port Talbot region have been amongst the hardest hit, with vehicles crawling past the affected section at minimal speeds. Many drivers have expressed frustration at the unexpected delays, though social media users have noted the professional conduct of emergency services working swiftly to manage traffic flow and remove obstructions.
While full details of the incident have yet to be released, it is understood that the crash was ‘serious’, prompting the closure of an entire lane for a prolonged period. At present, there have been no official statements regarding injuries or the number of vehicles involved. Police continue to urge anyone with information or dashcam footage to come forward, as investigations into the precise cause of the incident remain ongoing.
The situation also underlines the vulnerability of major transport arteries such as the M4 to single incidents; with limited alternative routes for motorists, even a partial closure can result in widespread disruption. This latest accident adds to growing calls for improved contingency planning to handle such incidents, especially during peak travel times or in well-trafficked regions.
Local businesses and commuters who depend on the M4 for timely access to Swansea and other South Wales destinations will be monitoring the situation closely. Many voiced concern about the knock-on effects for trade and staff punctuality, yet most acknowledged the importance of prioritising the safety of those involved in the collision and the attending emergency responders.
Authorities have reassured the public that all necessary resources have been deployed to clear the incident as rapidly as possible. In the meantime, official channels such as Traffic Wales and local radio stations continue to provide live updates and practical advice for those navigating the affected section of the motorway.
As efforts to recover the vehicles and investigate the cause of the collision proceed, authorities encourage all drivers to remain patient, vigilant, and adhere to temporary traffic regulations in place near the Briton Ferry junction. Further updates will be issued as soon as more information is available or conditions on the M4 return to normal.