The Guadalupe River overflowed into nearby roads, causing a massive flash flood that terrified many as it rushed across Kerr County.

At least 51 people, including 15 children, have been confirmed dead by the flood, which took around 45 minutes to turn into a catastrophic calamity, according to NBC News.

There were 750 girls attending Camp Mystic south of Kerrville, and rescue crews are searching for up to 20 of them around the clock. Because of the flooding, the camp is currently without WiFi, water, or electricity.

However, the Texas Lieutenant Governor Dan Patrick noted that the missing children are not necessarily ‘lost’, adding, “They could be out of communication.”

While many people watch in horror as the full scope of the flood’s destruction is revealed, video of the disaster’s start has gone viral on social media.

A timelapse video that was previously