DUISBURG, Germany — German prosecutors are investigating whether negligent manslaughter was involved in the deaths of 20 people killed in a crush at the Love Parade techno festival.
But amid a clamor of questions about who is to blame, they said yesterday they haven’t yet identified any suspects.
The tragedy Saturday happened near a tunnel that was the only entrance to the festival grounds in the western industrial city of Duisburg.
Police said 511 people were injured, one of whom was still in life-threatening condition yesterday.
Police raised the death toll late yesterday to 20 from 19 after a 21-year-old German woman succumbed to her injuries in a hospital.
It remains unclear what triggered the panic.
“The investigations are concentrating on the allegation of negligent manslaughter and negligent bodily harm,’’ said Rolf Haferkamp, a spokesman for Duisburg prosecutors. “They are not directed against any concrete person at present.’’
A union representing German police has blamed organizers and officials in Duisburg. But witnesses also have pointed the finger at police and private security staff, saying the panic broke out after they closed one end of a tunnel — the only entrance — when the festival grounds became too full.
Police denied that and said they actually opened a second exit to disperse the crowd before the accident happened.