Iranian media on Sunday reported explosions in the northeastern city of Mashhad as Israel kept up its attacks on Iran for the third day.
“Two locations in Mashhad suffered explosions and fires,” Fars news agency reported, adding that “air defences were activated in the area.” Other media carried similar reports, blaming the explosion on Israeli strikes.
Mashhad is home to the Imam Reza shrine, the holiest site in Iran for Shia Muslims.
Israel and Iran exchanged heavy fire for a third straight day on Sunday, marking their most intense confrontation to date and raising fears of a broader Middle East conflict.
Iranian missile barrages overnight killed at least 10 people in Israel, including children, and wounded around 200, as sirens rang across Jerusalem and Tel Aviv.
In response to Israeli strikes that began on Friday—targeting Iranian nuclear and military sites and killing 78 people—Iran retaliated by striking Israeli air refueling sites.
Yemen's Iran-backed Houthi rebels also launched missiles at Israel, while Israel intercepted seven drones and expanded its targets to Iranian air defenses and fuel infrastructure, including two depots in Tehran.
Tensions have derailed nuclear diplomacy. Iranian Foreign Minister Abbas Araghchi accused Israel of crossing a “red line” by hitting nuclear sites, suspending cooperation with the UN watchdog. Iran canceled nuclear talks with the US set for Sunday.
Amid global concern, US President Donald Trump warned Iran of “full strength” retaliation if American interests are attacked. Iraq, balancing ties with both nations, urged de-escalation to avoid regional fallout.