ALBAWABA - A major blast was reported in Semnan province, north of Iran after a fighter jet broke the sound barrier causing the explosion, Mehr News Agency reported.
According to Merh, this explosion is the fourth of its kind within the past week as a large explosion was heard at the Garmsar industrial town.
"Upon investigating, officials announced that no explosion or smoke was observed from the Garmsar industrial area," state media reported.
Without determining if the fighter jet that broke the sound barrier was Iranian or not, state media reported that after investigation, the cause of the jet was set at a fighter jet breaking the sound barrier in the area after flying its jet below the permissible speed.