Los Alfaques disaster: A truck carrying liquid gas crashes and explodes at a coastal campsite in Tarragona, Spain killing 216 tourists.

The Los Alfaques disaster was caused by the explosion of a road tanker near a holiday campsite on 11 July 1978 in Alcanar, Spain. The exploding tanker, which was carrying 23 tons of highly flammable liquefied propylene, killed 215 people and severely burned 200 more. Several individuals from the company that owned the vehicle were prosecuted for criminal negligence. The disaster resulted in new legislation in Spain, restricting the transit of vehicles carrying dangerous cargo through populated areas to night time only.

Tarragona is a coastal city and municipality in Catalonia (Spain). It is the capital and largest town of Tarragonès county, the Camp de Tarragona region and the province of Tarragona. Geographically, it is located on the Costa Daurada area on the Mediterranean shore.