Israel and Hezbollah traded attacks Friday night as many Israelis began observing Yom Kippur, one of the holiest days in the Jewish calendar. Earlier, the caretaker prime minister of Lebanon appealed in a speech for a diplomatic resolution to the fighting in his nation.

Sirens sounded in central Israel amid the holiday, and the Israeli military said two aerial drones had been detected crossing from Lebanese territory. They “were under surveillance from the moment they crossed the border from Lebanon,” the military said, noting that the air force successfully intercepted one. It added that there had been “damage to a building in Herzliya,” on Israel’s central coast, but no known casualties.

Residents of central Lebanon spent Friday searching the rubble of two buildings that were destroyed late Thursday in an area dotted with foreign embassies that had been largely untouched by the fighting. Lebanese officials said at least 22 people were killed and more than 100 injured in the strikes, which it attributed to Israel. Israel’s military did not respond to requests for comment on the strikes in Beirut.

On Friday, the Israeli military said it had struck Hezbollah militants and rocket launchers in southern Lebanon.

In a televised address, Lebanon’s caretaker prime minister, Najib Mikati, urged Israel and Lebanon to return to the provisions of a 2006 U.N. agreement on demilitarizing the countries’ shared border, adopted after the previous war between Israel and Hezbollah.

In recent days, the question of how to restore that resolution has also consumed senior U.S. officials, including Secretary of State Antony Blinken. A Hezbollah spokesperson indicated Friday that the group was open to cease-fire efforts.

Israel has been heavily bombing sites across Lebanon in recent weeks as part of a major offensive against Hezbollah, an Iranian-backed militant group. Several strikes in Beirut have succeeded in killing their targets, including the longtime Hezbollah leader Hassan Nasrallah and some of his close associates and presumed successors.