At least eight people have died and about 18 are missing in the Austin area after devastating flash floods swept through Central Texas, officials from

In Williamson County, two people were dead and one person remained missing as of late Sunday night. The Williamson County Sheriff's Office identified Kaitlyn Swallow, 22, of Liberty Hill as one of the deceased, while the other remains unidentified at this time.

Search efforts continue for the dozens of people still missing after Friday's floods, as questions swirl over what went wrong. Here's what we know so far.