KERRVILLE, Texas (AP) — Heavy rains have caused devastating flash floods in Texas Hill Country, killing at least 24 people and leaving many others missing. At a news conference late Friday Kerr County Sheriff Larry Leitha said two dozen people were dead after least 10 inches (25 centimeters) of rain poured down overnight, causing flash flooding of the Guadalupe River. Authorities said 237 people had been recued so far, including 167 by helicopter. Among the missing are more than 20 girls from a summer camp. Officials say the death toll may rise as rescue operations continue.