Two children, aged 14 and 16, were among the eight people who died at American rapper Travis Scott's Astroworld music festival in Houston on Friday night (U.S Central Time), the city's mayor said.

The other victims ranged in age from 21 to 27, Houston Mayor Sylvester Turner said at a press conference. Among the injured is a 10-year-old who is in a critical condition, Houston Police Chief Troy Finner said. Scott, an eight-time Grammy-nominated artiste who is hugely popular among young adults, was performing at NRG Park, when the crowd began to push toward the stage.