Twelve killed, about 50 injured in motorway pile-ups in Bulgarian fog

Twelve people have died and roughly 50 others were injured in a series of multi-vehicle collisions on a stretch of the Trakia motorway in Bulgaria. Officials attributed the crashes to dense fog that reduced visibility on the route. The pile-ups involved numerous vehicles along the same section of road. Emergency services were deployed to the scene to assist the injured and clear the wreckage. Authorities have not yet released further details on the sequence of the incidents.