Bulgaria’s Trakia Motorway Pile-Ups Kill 12 Amid Dense Fog

What changed

Two pile-ups on Bulgaria’s Trakia motorway killed 12 people and injured about 50 others on Tuesday. More than 70 cars and lorries were involved near Zimnitsa: 11 people died at the scene, and another died in hospital.

The first crash happened on the eastbound carriageway. A second followed on the Sofia-bound side. Officials said dense fog was the likely cause, with wet roads and unsuitable speeds also reported as possible contributors. Bulgaria declared Wednesday a national day of mourning.

Why it matters

This was not one blocked road but two linked disasters, unfolding on opposite sides of a major route between Sofia and the Black Sea coast. Drivers approaching the first wreck were themselves exposed to the fog, while rescue crews faced a scene so difficult that they had to remove sections of the crash barrier to reach people.

The fog also grounded helicopters, leaving ambulances to carry the injured to hospitals in the Yambol, Sliven and Burgas regions. The motorway stayed closed while crews cleared the wreckage, turning the crash into a transport disruption as well as a mass-casualty emergency.

The immediate lesson is stark: when visibility collapses, a single collision can become a chain reaction before approaching drivers can understand what they are seeing. Here, officials indicated that distraction from the first crash may have helped trigger the second.