Israeli strikes on Lebanon's Bekaa region on Tuesday killed 12 people, the region's governor Bachir Khodr told Reuters, in the deadliest airstrikes since last year's truce ended months of fighting between Israel and the armed group Hezbollah.

Israel's ongoing military strikes in Lebanon send a "clear message" to Hezbollah, Defence Minister Israel Katz said on Tuesday, accusing the Iran-backed Islamist group of seeking to rebuild its forces in violation of a ceasefire agreement.

The Israeli military said it had struck a number of military compounds belonging to the armed group Hezbollah.