At least 555 people have been killed across Iran in joint US-Israeli attacks targeting 131 counties so far, according to the Iranian Red Crescent as fighting escalates across the Middle East.

Ali Larijani, secretary of Iran’s National Security Council, rejected claims in US media he has made a renewed push to resume nuclear negotiations with Washington, saying Tehran has not sought fresh talks.

Israel said it is striking at the “heart of Tehran” and has launched attacks on Lebanon after Hezbollah fired a barrage of rockets at northern Israel. Lebanon’s Health Ministry said at least 31 people were killed and 149 others wounded in Israeli air attacks.

In the Gulf, Kuwait’s Defence Ministry said several US warplanes crashed inside the country, adding that all crew members survived.

US President Donald Trump warned that attacks on Iran would continue until all objectives are achieved and vowed to avenge the deaths of three US soldiers.

Meanwhile, a fire broke out at Saudi Arabia’s Ras Tanura oil refinery after debris from two intercepted drones fell on the facility, according to the Saudi Defence Ministry.

British Foreign Minister Cooper said a drone that struck a UK military base in Cyprus hit the runway.

The US embassy in Bahrain warned that “terrorist groups” are intent on attacking US citizens.

A security source told Al Jazeera that a joint Israeli-US missile strike targeted sites belonging to the Iran-backed paramilitary group Kataib Hezbollah in Jurf al-Sakhr, south of the Iraqi capital Baghdad.