By IRNA,
Berlin : Police in the west German city of Duisburg have started on Sunday to look into what caused the stampede in a tunnel at a music festival that killed at least 19 people.
According to news reports, sixteen people had reportedly died on the scene when the crowd panicked, while three more victims died later in hospital.
Sixteen victims have been already identified of whom four were foreigners.
Authorities announced the number of injured rose to 342, many of them still in serious condition.
Mass panic erupted Saturday afternoon when a tunnel leading to the techno music festival attended by hundreds of thousands of mostly young people became overcrowded.
According to witnesses, people were trampled to death and crushed in the crowd as the tunnel had no emergency exits for people to escape.
Rescue workers trying to get into the tunnel were also overwhelmed by the sheer masses of people coming out the tunnel.