Police in Texas are investigating the deaths of at least eight people at a music festival.
A "mass casualty incident" has been declared by officials.
17 people were taken to hospital - 11 suffering from cardiac arrest.
Many more people are feared injured in what's been described as a "crowd surge" in Houston.
— TRAVIS SCOTT (@trvisXX) November 6, 2021
Rapper Travis Scott says he's "absolutely devastated" after eight people were killed in a crowd surge as he performed.
The musician has tweeted he'll give the police his "total support".
Officials declared a "mass casualty incident" during his headline performance at Astroworld Festival in Houston last night.
