A significant fire involving a lorry has forced the closure of the M5 motorway in the southbound direction. Authorities have also announced that the northbound carriageway will be closed later today to manage the situation safely. Drivers are advised to follow clearly marked diversion routes to avoid the affected sections of the motorway. Emergency services are on the scene working to contain the fire and clear the roadway as quickly as possible to minimize disruption. Motorists should expect delays and plan alternative routes in advance.