Videos of an unexplained fire by an Iranian nuclear power plant circulated on X on Thursday morning.

The breaking news has been reported by several Israeli news sources along with other accounts, but the fire, nor its cause has not yet been independently confirmed by Iran.

It appears, from the X threads, that initial reports stem from an opposition party within Iran.

Concerns over a potential attack or accident at one of Iran’s nuclear facilities has been a key concern since the conflict between Hamas and Israel has spread to neighboring countries.