Hezbollah said it had fired rockets at two bases near the Israeli city of Tel Aviv and a naval base west of Haifa on Tuesday morning just hours before US secretary of state Antony Blinken arrived in Israel to make another push for an elusive ceasefire.

Diplomatic efforts have so far failed to bring an end to the year-long war in the Palestinian territory of Gaza and its spill over conflict between the Lebanese armed group Hezbollah and Israel, which has intensified in recent weeks after a year of exchanges of fire mostly across Lebanon’s southern border.

After a heavy night of Israeli strikes on Lebanon’s south and the southern suburbs of its capital Beirut, Hezbollah said it had fired rockets at the Glilot base used by Unit 8200 of Israeli military intelligence, and the Nirit area in Tel Aviv’s suburbs.

The group said it also fired rockets at a naval base outside the port city of Haifa further north.

There were no immediate reports of casualties. Israeli authorities said air sirens were activated in areas southeast of Tel Aviv due to one projectile identified crossing from Lebanon and falling in an open area.

Other sirens sounded in Tel Aviv. Blinken’s trip to the region is his 11th since the attack on Israel by the Palestinian militant group Hamas on October 7, 2023, that triggered the Gaza war.

It comes as Israel intensifies its military campaign against Iran-backed militants — Hamas in the Gaza Strip and Hezbollah in Lebanon.

Blinken will try to revive negotiations to end the Gaza war and defuse the conflict in Lebanon in a week-long West Asia visit which also includes Jordan and Qatar.

In Israel, he will discuss Israel’s retaliation for Iran’s October 1 ballistic missile attack, a senior state department official said, speaking on condition of anonymity.

A retaliation could disrupt oil markets and risks igniting a full-blown war between the arch-enemies. Iran has written to the UN nuclear watchdog to complain about Israeli threats to strike its atomic energy sites, its foreign ministry spokesman said on Monday.

Iran’s foreign minister Abbas Araqchi, at a news conference in Kuwait during a regional tour, said Tehran does not seek war in West Asia and has made efforts to reduce tensions but is prepared for any conflict.

Israel has vowed to attack Iran in retaliation for the volley of Iranian missiles on October 1, stirring speculation that Iranian nuclear sites could be among the targets.

“We know that Israel does not follow any international rule. We have our own tools to defend ourselves and our nuclear infrastructure,” Araqchi said. “Attacking nuclear facilities is a big international crime, even threatening to attack nuclear sites is an international crime and goes against international laws,” Araqchi said.