A t least 66 people are dead in central Texas after devastating flash floods slammed Texas Hill Country, with water rescues taking place along the Guadalupe River. A dozen are still missing from Camp Mystic in Kerr County, a children's summer camp, officials said Sunday.

Here’s what to know about the deadly flooding, the colossal weather system that drove it in, and around Kerr County, Texas, and ongoing efforts to identify victims.