Explosive boom shakes western Iran, officials blame lightning 10 hours later
A local official had earlier ruled out the possibility of the blast being caused by lightning.
Iranian flag flies in front of the UN office building, housing IAEA headquarters, amid the coronavirus disease (COVID-19) pandemic, in Vienna, Austria, May 24, 2021.(photo credit: LISI NIESNER/ REUTERS)ByTZVI JOFFREUpdated: