Teenagers among eight dead in Houston Astroworld festival concert crush

• Many more injured as crowd surges towards stage
• Police investigate reports of people being secretly injected with drugs

Eight people were killed and dozens injured in a crowd surge at a music festival in Houston on Friday night, in what the city's mayor called a tragedy on many different levels".

Speaking to reporters on Saturday, Sylvester Turner said the dead ranged in age from 14 to 27, the second teenaged victim being 16 years old. Thirteen of 25 people taken to hospital were still in care, he said, five of them under the age of 18.