ROME (AP).- A 2,000-year-old house in the ancient Roman city of Pompeii, which was once used by gladiators to train before combat, collapsed Saturday, officials said. The site was closed at the time and nobody was injured, but the collapse underscored a controversy over the poor state of Pompeii, one of Italy’s main tourist attractions. The office of Pompeii’s archaeological superintendent said the collapse occurred Saturday at around 6 a.m. (0500 GMT). Attendants opening the site saw the collapse about an hour later. The house, called by the Latin name “Schola Armaturarum Juventis Pompeiani,” was closed to the public, and could only be seen from the outside, and it was not considered at risk of collapse, officials said. Situated on Pompeii’s main street, the site was quickly cordoned off. Antonio Varone, director of Pompeii’s excavations, told the ANSA news agency that officials were trying to “preserve up to the last fragment of the ‘Schola Armaturarum.'” There was no official