Rocket fire from Lebanon killed five people in northern Israel on Thursday, including four foreign workers, in the deadliest such attack since Israel's invasion earlier this month.

The attack came as senior US diplomats were in the region to push for cease-fires in Lebanon and Gaza, hoping to wind down the wars in the Middle East in the Biden administration's final months.

The Hezbollah militant group has been firing rockets, drones and missiles into Israel, and drawing retaliatory strikes, since Hamas' Oct. 7, 2023 attack out of the Gaza Strip triggered the war there. Hezbollah and Hamas are allies backed by Iran.

The conflict along the border escalated into a full-blown war last month, when Israel launched a wave of heavy airstrikes across Lebanon and killed Hezbollah's top leader, Hassan Nasrallah, and most of his deputies. Israeli ground forces pushed into Lebanon at the start of October.

The Metula regional council reported Thursday's attack, without detailing the number or type of projectiles used. The nationalities of the workers were also not immediately known.

Metula, Israel's northernmost town which is surrounded by Lebanon on three sides, has suffered heavy damage from rockets. The town's residents evacuated in October 2023, and only security officials and agricultural workers remain.

The Hotline for Refugees and Migrants, an organization that advocates for foreign workers, said authorities had put them in danger by allowing them to work along the border without proper protection.

Agricultural areas along Israel's border, where much of the country's orchards are located, are closed military areas that can only be entered with official permission.

Hezbollah's newly named top leader, Sheikh Naim Kassem, said in a video statement Wednesday that the militant group will keep fighting Israel until it is offered cease-fire terms it deems acceptable. He said it has recovered from a series of setbacks in recent months, including attacks using explosive pagers and walkie-talkies that was widely blamed on Israel.

“Hezbollah's capabilities are still available and compatible with a long war,” he said.

Earlier on Thursday, the Israeli military warned people to evacuate from more areas of southern Lebanon, as airstrikes in different parts of the country killed eight people, according to Lebanon's state-run National News Agency.

Israel has warned people to evacuate from large areas of the country, including major cities in the south and east.

More than 2,800 people have been killed and nearly 13,000 wounded in Lebanon since the conflict began last year and some 1.2 million people have been displaced, according to the Lebanese government.

In Israel, rockets, missiles, and drones launched by Hezbollah have killed at least 68 people, about half of them soldiers. More than 60,000 Israelis from towns and cities along the border have been evacuated from their homes for more than a year.