At least 135 people have been killed in "catastrophic" flash flooding across Texas, while several others remain missing.

Here's what to know about the deadly flooding, the colossal weather system that drove it and ongoing efforts to identify victims.

The flash flooding deluged summer camps in Kerr County, dotted along the Guadalupe River, and also left families in Burnet, Kendall, Tom Green, Travis and Williamson Counties looking for family members swept away in the floodwaters.

After deadly flash flooding in the Texas Hill Country killed 27 people at Camp Mystic, 17-year-old Charlotte March found a way to help. Just days earlier, she had released a song inspired by her own Christian summer camp,

With an outpouring of volunteers from across Texas, the riverside town of Hunt is grappling with loss and recovery after deadly floods.

At least 129 people are dead from the devastating flooding in the Texas Hill Country.Kerr County was hit the hardest, with at least 103 deaths, including 36 children. President Donald Trump signed a disaster declaration for the county and the Federal Emergency Management Agency is on the ground there.

Texas was hammered with heavy rain again Sunday, just nine days after catastrophic flash floods left more than 120 people dead in one of the worst natural disasters in the state’s

In Kerr County, home to Camp Mystic and other youth camps in the Texas Hill Country, searchers have found the bodies of 68 people, including 28 children, Sheriff Larry Leitha said.

The region of Texas where flash flooding killed more than 90 people -- including dozens of campers -- is known for its tendency to experience flood emergencies.

Lipton Hard Iced Tea pledges financial aid to Kerr County Flood Relief in Texas through proceeds from its 12-pack sales until the end of August, capped at $30,000.