German Chancellor Angela Merkel has demanded an "intensive" investigation into the deadly stampede at the Love Parade music festival in Duisburg.
Mrs Merkel said she had been "appalled" by the tragedy, adding that everything must be done to ensure such deaths did not happen again.
The crush outside a tunnel at the entrance of the festival killed 19 people and injured 340 on Saturday.
Survivors have blamed organisers for the deaths.
They said the site was too small and warnings of overcrowding had been ignored.
The organiser of the festival has said there will be no more Love Parades.
German prosecutors have launched a criminal investigation into the disaster.
BBC News