A man walked into the Sagrada Familia Basilica in Barcelona, went into the sacristy and sprayed the priests' vestments with a flammable substance, and lit a fire. The 1,500 tourists present were evacuated, four needed treatment for smoke inhalation. Reportedly the sacristy is destroyed, and the crypt is damaged. I hope this doesn't result in greatly reduced tourist revenue on which the completion of the project depends.
The arsonist was restrained by tourists and arrested. Back in 1936, anarchist-arsonists attacked the building, destroying a lot of Gaudi's plans and maquettes.