BANOS, Ecuador (AP) - At night Tungurahua volcano growls and roars above this picturesque tourist town, but only a handful of people are left to hear it. Banos, famed for its hot springs and mountain trekking, is a virtual ghost town after authorities placed the area under an "orange alert" Saturday, warning the volcano was likely to erupt within days or weeks. Troops moved residents out of town, but three priests and their assistants remained behind. They are keeping watch over a statue of the town's patron, the Virgin de Agua Santa, which townspeople believe has saved Banos during previous eruptions of Tungurahua. In 1886, rivers of lava from the volcano threatened to bury the town, but the people prayed to the Virgin of Sacred Water and Banos was spared.