Lebanon was drawn into the Middle East war on March 2 when Iran-backed militant group Hezbollah launched rockets towards Israel in response to US-Israeli strikes that killed Iranian supreme leader Ayatollah Ali Khamenei.

Israel has responded with intense strikes in multiple Lebanese regions and ground operations in the south, and has hit central Beirut several times, with and without warning.

Lebanon's official National News Agency (NNA) said a strike in the early hours of Wednesday hit an apartment in the central Zuqaq al-Blat neighbourhood, a densely populated area close to the government's headquarters and several embassies.

It said the strike occurred near where the Israeli military last week hit a Beirut branch of the Hezbollah-linked financial firm Al-Qard Al-Hassan.

The NNA said two other strikes targeted two apartments in the central Basta district, another densely populated area where Israel had struck during a 2024 war between Israel and Hezbollah.

An AFP correspondent saw first responders at the scene in Basta where the walls of apartments on two adjacent floors appeared to have been blasted off.

Lebanon's health ministry reported a preliminary toll for both strikes of six dead and 24 wounded. Human remains at the scenes would require DNA testing to determine their identity, the ministry added.

- New warnings -

The Israeli military subsequently issued an evacuation warning for a building in central Beirut's Bashoura neighbourhood.

An accompanying map indicated the target building was the same one that Israel's army struck last Thursday also after an evacuation warning, causing damage but without destroying it.

The Bashoura area is adjacent to Beirut's commercial centre, where many large companies and government institutions are based, and is also near residential buildings and food outlets.

Local media reported gunfire in the area, to wake people who were asleep in the pre-dawn hours.

The NNA also reported strikes on Beirut's southern suburbs, a Hezbollah stronghold which Israel has pounded in recent weeks.

AFP correspondents in Beirut heard the sound of several explosions early Wednesday as the strikes hit.

Also early Wednesday, local media said Israel's army struck a building in Aaqbiyeh, near the coastal city of Sidon, also after an evacuation warning.

Late Tuesday, Israel's army had issued an evacuation order for most of the southern city of Tyre as well as swathes of surrounding areas, saying it planned to "act forcefully" against Hezbollah.

Bilal Kashmar, media coordinator for Tyre's disaster management unit, told AFP there was panic after the warning.

Many families had remained, including in several Palestinian refugee camps, despite previous Israeli army evacuation calls for swathes of south Lebanon, he said, while some 11,000 displaced people have taken refuge in the area.

On Tuesday, the health ministry reported four dead in a strike in the eastern city of Baalbek, and four Syrians dead in a strike on Jibsheet in the country's south.

Israel said late Tuesday it had struck Hezbollah sites "throughout Lebanon" after a series of air raid sirens in northern Israel, with Hezbollah saying it had launched a wave of attacks.

According to Lebanese authorities, Israeli strikes have killed at least 912 people since March 2, while more than one million people have registered as displaced, with more than 130,000 staying in official shelters.