Camp Mystic officials said catastrophic flooding of the Guadalupe River had washed away the highway and left the retreat without power, water or internet.

At least 13 people were dead after flash flooding hit south-central Texas early Friday, officials said, with more than 20 girls at a summer camp still unaccounted for.

(Reuters) -Thunderstorms and torrential rain triggered deadly flash flooding on Friday along the Guadalupe River in south-central Texas, killing at least 13 people and leaving more than 20 girls from a summer camp missing, according to local authorities.