BBC News:- At least eight people have died and scores of people have been hurt after a crowd surge on the opening night of a music festival in Houston, Texas. Panic broke out after the crowd began to press towards the front of the stage at rapper Travis Scott's Astroworld Festival, emergency officials said. Eleven people were taken to hospitals in cardiac arrest and eight died. Some casualties are aged as young as 10. Some 50,000 people attended the outdoor event, which has been cancelled. Lina Hidalgo, the county judge of Harris County, described what had happened as an 'extremely