1-MIN READ At Least Two Dead, Several Injured After Blast Brings Down Building in Central Madrid Smoke rises from a damaged building after an explosion in Madrid downtown, in Madrid Spain January 20, 2021. REUTERS/Susana Vera Initial investigations suggested that the blast in Calle de Toledo, a street leading out from the city centre, had been caused by a gas leak, he said. FOLLOW US ON: At least two people died and several were injured when a building in a central Madrid belonging to the Catholic Church collapsed on Wednesday after an explosion, Mayor Jose Luis Martinez-Almeida told reporters. Initial investigations suggested that the blast in Calle de Toledo, a street leading out from the city centre, had been caused by a gas leak, he said.