Iranian journalists say they are being muzzled over reporting port explosion

Criminal charges against media outlets have raised concerns about press freedom

Iranian journalists have warned of a media crackdown after a series of incidents, the most recent an explosion at a munitions company in which one person was killed and two injured.

The explosion on Tuesday, for which there has been no official explanation, occurred in Isfahan, only two days after a thwarted cyber-attack on the communications infrastructure on Sunday, and a huge explosion on Saturday at the strategic southern port of Shahid Rajaee, near Bandar Abbas.