Fresh explosions have been reported in the Iranian capital of Tehran late on Sunday local time after Iran’s President warned of “more painful and crushing responses” to Israeli strikes.

Footage circulating online on Sunday afternoon Tehran time appear to show smoke rising from buildings in several locations. These clips could not be independently verified.

Israel’s military had issued an “urgent warning to Iranian citizens” to evacuate areas close to Iranian military and weapons sites earlier on Sunday. The Israel Defense Forces (IDF) has been approached for comment.

Iranian President Masoud Pezeshkian said on Sunday that if Israel continues to strike across Iran, the Islamic republic would launch “more painful and crushing responses,” according to the government-linked semi-official Mehr news agency.

This is a breaking story. Updates to follow.