Dhaka, July 6 -- At least 24 people have died, and more than 20 children from a summer camp are missing after torrential rain triggered deadly floods along the Guadalupe River in the US state of Texas.Kerr County Sheriff Larry Leitha raised the death toll from 13 as hundreds of emergency crews, supported by helicopters and drones, continue to scour the area in an urgent search effort."What I can confirm at this point, we're at about 24 fatalities," Lethia told the evening press conferenceTexas Governor Greg Abbott shared a video on social media showing a victim being rescued from a tree by a responder dangling from a helicopter, as floodwaters raged below.US President Donald Trump described the floods as "terrible" and "shocking."Texas Lieu...