Spanish police said they suspected a deadly explosion at a house late Wednesday was linked to a van attack in Barcelona that killed 13 people and left around 100 others hurt.

Josep Lluis Trapero of the regional police of Catalonia told reporters Thursday that the explosion hit a house in Alcanar some 200 kilometres (124 miles) south of Barcelona, leaving at least one person dead, and police suspected those in the house were "preparing an explosive device."