Israel’s air force carried out intense airstrikes on mountains overlooking a southern Lebanon city Friday in an attack that the Israeli military said targeted underground assets of the Hezbollah movement, ABC News reported.

Shortly afterward, another strike hit an apartment building in the nearby city of Nabatieh, killing one woman, wounding 11 and knocking out the building's top floor, according to Lebanon's state news agency.

It was not immediately clear if that strike targeted anyone in the building.

Since the 14-month Israel-Hezbollah war ended with a U.S.-brokered ceasefire in November, Israel has carried out almost daily airstrikes on southern Lebanon. Friday’s strikes were more intense than usual.

“We are steadfast no matter how much you bomb us with your fighter jets and drones,” Hassan Ghandour, a Shiite cleric from Nabatieh, told The Associated Press at the scene of the strike outside the building.

Lebanon's president and prime minister condemned the Israeli strikes on south Lebanon, saying they violated the ceasefire deal.

The airstrikes on the mountains overlooking Nabatieh came in two waves, and bunker buster bombs were used, Lebanon’s state-run National News Agency reported. NNA said four people were lightly wounded in the airstrikes outside the city.