It's now in the early hours of Thursday in Beirut, and we'll be ending our live coverage of the most recent attacks on Lebanon here. 

In summary: At least 20 people died and 450 have been injured after hand-held radio devices possibly planted with explosives detonated across Lebanon's capital Beirut and elsewhere, in an attack suspected to be the work of Israeli intelligence. 

The US has said it was not involved in the attacks, though some reports suggest it was warned of an operation by the Israeli government in advance, without any details of what that would be.

Several UN and human rights officials have called for a full investigation into the attacks, saying the use of "booby-trapped" devices contravenes international humanitarian laws.

You can look back on the day's developments below, or download the ABC News app and subscribe to our range of news alerts for the latest updates.

Former ambassador to Lebanon and PhD candidate at the Centre for Arab and Islamic Studies at ANU Ian Parmeter spoke to ABC NewsChannel about the waves of explosions targeting Hezbollah communication devices.

"What we have seen with the explosions is that for the time being, it makes it extremely difficult for Hezbollah to communicate with its various militant sections," Mr Parmeter said.

"That means defences are likely to be weak and the chance of an Israeli attack on southern Lebanon working effectively are now much higher."

He concludes to say it's evident Israel's forces are starting to focus on the north of the country since there is a limited amount they can do in Gaza at this stage.

Speaking to reporters in Taipei, Taiwan Defence Minister Wellington Koo said the government was closely watching developments after thousands of pagers detonated in Lebanon on Tuesday.

"After the news came out, my understanding is that at present the relevant national security bodies are paying great attention to this," he said, without elaborating.

This statement comes after reports were made that Taiwanese company Gold Apollo built the 5,000 pagers that had explosive material.

The company's founder, Hsu Ching-Kuang, later said the pagers were made by a company in Europe that had the right to use the Taiwanese firm's brand.

Defense ministry spokesperson Sun Li-fang said on Wednesday that Taiwan was "not involved in any international cooperation outside of this region that is sort of a provocative nature".

Reporting with Reuters

 Israel has not claimed responsibility for the attacks on Lebanon using hand-held pagers and radio devices, but most analysts say it is the most likely source.

The attacks coincided with the Israeli defence minister and prime minister flagging a focus on northern Israel as a "new phase" of the broader conflict with Hamas, Hezbollah and Iran.

"The centre of gravity is moving northward," Israeli Defence Minister Yoav Gallant said during a visit to an air base on Wednesday. 

"We are at the start of a new phase in the war."

The Gaza Strip is still occupied by the Israeli military, with Palestinian health authorities estimating more than 41,000 people have been killed since October 2023. 

1,200 Israelis were killed in the October 7 terrorist attack by Hamas upon southern Israel, with about 100 hostages remaining captive in Gaza.

Japanese radio equipment maker ICOM said on Thursday that it was investigating news reports that two-way radio devices bearing its logo exploded in Lebanon.

Hand-held radios used by armed group Hezbollah detonated on Wednesday across Lebanon's south, killing 20 people and injuring hundreds.

Images of the exploded walkie-talkies showed labels with "ICOM" and "made in Japan".

Here's a screenshot of the online statement:

More footage of some of the aftermath of the attack on Lebanon and Hezbollah has emerged, including a crater left in a hospital carpark.

A senior Hezbollah leader said its response to Israel, suspected as the perpetrator of the remotely detonated device attacks, would be announced shortly.

Saudi Crown Prince Mohammed bin Salman said on Wednesday the kingdom would not recognise Israel without a Palestinian state, and strongly condemned the "crimes of the Israeli occupation" against the Palestinian people.

Saudi Arabia, known for its record of human rights abuses, had been on track to normalise relations with Israel before the October 7 Hamas terrorist attacks and the ensuing Israeli invasion and occupation of Gaza. 

Reporting by Reuters

US Defense Secretary Lloyd Austin spoke with Israeli Defence Minister Yoav Gallant on Wednesday to review regional security developments.

Mr Lloyd reiterated US support for Israel in the face of threats from Iran, Hezbollah and other Iranian allies, the Pentagon said.

Reporting by Reuters

UN special rapporteur on human rights and counterterrorism Ben Saul spoke to ABC NewsChannel about the UN resolution calling on Israel to leave Gaza and the occupied West Bank.

"It's a really important resolution because it backs up the advisory opinion of the International Court of Justice," Professor Saul said.

"It's not legally binding but it's highly persuasive in trying to mobilise the international community to enforce international law."

When asked about Australia abstaining, Professor Saul said Australia didn't really explain its reasoning.

"Australia thought the resolution was perhaps going further than the international court decision but it didn't give any detail about that which I think is really disappointing."

He went on to explain it's impossible to know what amendments Australia would like to the resolution to get it across the line.

"They haven't disclosed what they're unhappy with. What in the resolution does Australia disagree with?"

Warning: some viewers may find this content distressing

Our team at ABC NEWS Verify has confirmed this footage of a funeral procession in Beirut shows the moment a device loaded with explosives went off.

A explosion can be heard as people begin to scream and run for cover.

The verification process used a reverse image search that showed it was first posted about 18 hours ago, meaning the timing correlates with the second wave of explosions.

The weather in Beirut has been mostly sunny, which is consistent with the video, and other screenshots indicate it was a livestream video.

ABC News Verify also located a second video taken at a slightly different angle with the same music and visuals.