An Iranian war-boat fires a missile during the "Velayat-90" navy exercises in the Strait of Hormuz in southern Iran on December 30, 2011. Iran, which has been carrying out war games in the Strait of Hormuz over the past week, has said that "not a drop of oil" would pass through the strait if Western governments follow through with planned additional sanctions over its nuclear programme. AFP PHOTO/IIPA/ALI MOHAMMADI (Photo credit should read ALI MOHAMMADI/AFP/Getty Images)

At least seven ships have caught fire in the port of Bushehr in southern Iran, the Tasnim news agency reported Wednesday.

No casualties have been reported so far, the agency said.

There have been several explosions and fires around Iranian military, nuclear and industrial facilities since late June.

Last week, a container ship caught fire in Ameri Port in Bushehr.

A blast occurred at the Natanz nuclear site on July 2. No casualties or leaks of radioactive materials were reported at the site, which is Iran’s primary uranium processing facility.