People gather outside the AUBMC Medical Center in Beirut, Lebanon, after pager explosions injured thousands of people. (Photo: Reuters/VNA)

According to a statement released by the Iranian Foreign Ministry, hundreds of pagers exploded simultaneously across Lebanon on Tuesday, killing at least nine people and wounding nearly 3,000, many of them Hezbollah members.

Araghchi expressed solidarity and extended condolences to Lebanon, and said Iran is ready to provide assistance to treat the injured and even transfer them to Tehran.

He mentioned an injury sustained by Iranian Ambassador to Lebanon Mojtaba Amani in the incident and thanked the Lebanese government for its immediate measures to treat Amani. Lebanese Foreign Minister Habib said his government is investigating the incident as a terrorist attack.

After the explosions, Hezbollah declared it was "at the highest level of readiness to defend Lebanon and its people", blamed Israel for the "criminal attack", and vowed to retaliate.