Lebanese mayor, several others killed in Israeli airstrike

An Israeli airstrike on the municipal building in Nabatieh, a major town in southern Lebanon, which serves as a provincial capital, killed at least six people including the mayor, two security sources said.

Lebanon's caretaker Prime Minister Najib Mikati condemned the attack on the provincial capital, saying it "intentionally targeted a meeting of the municipal council to discuss the city's service and relief situation."

It was the most significant Israeli hit yet on a Lebanese state building since it launched its offensive two weeks ago.

Hours earlier, at least one Israeli strike hit Beirut's southern suburbs, Reuters witnesses said.

Reuters witnesses heard two blasts and saw plumes of smoke emerging from two separate neighbourhoods. It came after Israel issued an evacuation order early on Wednesday, which mentioned only one building.

Huwaida Turk, the governor of Nabatiyeh province, told The Associated Press that Mayor Ahmad Kahil was among those killed. Kahil had told Reuters on Oct. 3 he was staying put in the city, even as Israel first issued an evacuation notice for Nabatieh.

The Israeli military has in recent weeks carried out strikes on Beirut's southern suburbs, the stronghold of Iran-backed Hezbollah, without advance warnings, or with a warning for one area while striking more broadly.

Israel's military said on Wednesday it struck dozens of Hezbollah targets in the Nabatieh area and dismantled underground infrastructure, while its navy also hit dozens of targets in southern Lebanon, in co-operation with troops on the ground.

And in Qana, Lebanon's Civil Defence said 15 bodies had been recovered from the rubble of a building from an airstrike and that rescue efforts were still underway. There was no immediate comment from the Israeli military on the strikes late Tuesday.

Israeli military evacuation orders now affect more than a quarter of Lebanon, according to the UN refugee agency, two weeks after Israel began incursions into the south of the country that it says are aimed at driving back Hezbollah.

Concerns about safety of peacekeeping force

Some Western countries have been pushing for a ceasefire between the two neighbours, as well as in Gaza, though the United States says it continues to support Israel and was sending an anti-missile system and troops.

On Tuesday, State Department spokesperson Matthew Miller said the U.S. had expressed its concerns to Prime Minister Benjamin Netanyahu's administration on the recent strikes.

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"When it comes to the scope and nature of the bombing campaign that we saw in Beirut over the past few weeks, it's something that we made clear to the government of Israel we had concerns with and we were opposed to," he told reporters, adopting a harsher tone than Washington has taken so far.

Israel has also come under scrutiny because of its dealings with the UN peacekeeping force UNIFIL in south Lebanon. Since an Israeli ground operation against Hezbollah militants began on Oct. 1, UNIFIL positions have come under fire and two Israeli tanks burst through the gates of one of its bases, the UN says. Five peacekeepers have been injured.

In a statement on Wednesday condemning Hezbollah attacks on Israel and calling for a ceasefire, Canadian Foreign Affairs Minister Mlanie Joly and Minister of International Development Ahmed Hussen called on the parties in the conflict to "uphold their obligations under international law to ensure the safety and security of civilians,as well as the protection of first responders and UNIFIL personnel, at all times."

European Union countries that contribute have no intention of pulling back despite Israeli calls to do so, Austrian Foreign Minister Alexander Schallenberg said.

Sixteen EU countries, including Austria, contribute to UNIFIL and the recent incidents have sparked widespread alarm among European governments.

"The State of Israel places great importance on the activities of UNIFIL and has no intention of harming the organization or its personnel," Israeli Foreign Minister Israel Katz said in a statement on Wednesday.

"Furthermore, Israel views UNIFIL as playing an important role in the 'day after' following the war against Hezbollah."

Over 1 million displaced

The Middle East, meanwhile, has been on edge since Iran attacked Israel with a barrage of missiles on Oct. 1 after a similar large-scale operation in April. Israel has promised to retaliate.

Iran's allies in its "Axis of Resistance" to Israeli and U.S. interests Lebanon's Hezbollah, Yemen's Houthis and armed groups in Iraq have staged attacks in the region in support of Hamas in the Gaza war, complicating efforts to ease tensions.

Israel has been turning up the heat on Hezbollah since it began incursions into Lebanon after killing Hezbollah leaders and commanders, including its veteran secretary-general Hassan Nasrallah last month in the biggest blow to the group in decades.

With diplomatic efforts stalled, the fighting continues.

Israeli strikes in Lebanon have killed at least 2,350 people over the last year and left nearly 11,000 wounded, according to the health ministry, and more than 1.2 million people have been displaced.

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The toll does not distinguish between civilians and combatants but includes hundreds of women and children.

Around 50 Israelis, both soldiers and civilians, have been killed in the same period, according to Israel.

The figures underscore the heavy price Lebanese are paying as Israel tries to destroy Hezbollah's infrastructure in their conflict, which resumed a year ago when it began firing rockets at Israel in support of Hamas at the start of the Gaza war.