At least three dead in Madrid after gas explosion

A powerful gas explosion tore through a residential building in central Madrid Wednesday, killing at least four people and ripping the facade off the structure. Initial investigations suggested that the blast in Calle Toledo, a street leading out from the city centre, was caused by a gas leak, Mayor Jose Luis Martinez-Almeida said. "The most likely hypothesis is a gas leak, there was a person working on the boiler," the mayor told reporters as he announced that a body had been discovered under the rubble, raising the death toll to three.