Updated

A fire department dispatcher in northwestern Arizona says a fifth unoccupied home has been swept away by floodwaters.

Dori Rothenberger, with the Beaver Dam-Littlefield Fire District, tells The Associated Press the fifth home in the community of Beaver Dam was washed away Tuesday night. The four others near a normally dry wash collapsed into the floodwaters Tuesday afternoon.

Virgin River Domestic Wastewater Improvement District chairman Bill Evans says three more homes are "teetering" on the edge of a flooded golf course in the community of Beaver Dam.

Evans says a man in his 70s collapsed from an apparent heart attack late Tuesday when flooding reached his home while friends tried to protect it with sandbags. He was taken to a hospital in St. George, Utah. His condition wasn't immediately available.