Flash floods leave at least 16 dead in Utah

Flash floods have killed 12 people near Utah's border with Arizona when a "large wall of water and debris" triggered by heavy rain pounding nearby canyons swept them away in their cars, officials said on Tuesday.

In Zion National Park to the north, four people died and three were missing after going to explore canyons on Monday, officials said.

"Another tragedy for our state. Reeling right now," Utah Lieutenant Governor Spencer Cox said on Twitter.