At least 59 people have died after heavy rainfall caused flash flooding in parts of central Texas on Friday, authorities have said.

Texas Gov. Greg Abbott visited the all-girls retreat Camp Mystic late Saturday as the death toll from Friday's flash flooding of the Guadalupe River continued to rise through the weekend.

Kerr County Sheriff Larry Leitha said in a press conference Sunday morning that, as of 9 a.m., 59 people have died in the catastrophic flooding stemming from a storm early Friday morning in Kerrville, Texas. Of the 59 victims, 38 are adults including 18 unidentified, and 21 are children including four unidentified.