Explosion destroys building near the Acropolis in Athens, killing two American tourists; four people missing

An explosion destroyed a building near the Acropolis in Athens, killing at least two people and leaving four missing, Reuters reported. CBS News reported that the two people killed were American tourists. The building included a holiday rental, and U.S. tourists and a British national were among the missing, the BBC reported. The mayor of Athens said the explosion was likely caused by a gas leak.