North Rhine-Westphalia's Prime Minister Hendrik Wüst (CDU) was dismayed. The public prosecutor's office in Düsseldorf is investigating an attempted homicide.

The authorities are doing everything they can to clarify the circumstances of the incident, it said. The explosion occurred in the morning in the apartment of a 57-year-old man.. Herbert Reus ( CDU), Minister of the Interior, speaks to journalists at the scene of the explosion in Ratingen.