english: This was in addition to dubious reports concerning the explosion, as all reports failed to establish a connection between the explosion and a bomb. The reports suggested that the main reason of the explosion was a gas leak.
non_english: A questo vanno aggiunti i dubbi sollevati da un'altra relazione sull'esplosione, contrastante con le altre, che suggeriva come causa dell'esplosione una fuga di gas.