It's been a busy morning in our London newsroom after the US carried out new strikes against a Houthi target in Yemen. Here's a round-up of the latest lines:

• In the early hours of this morning, a US warship fired missiles at a target in Yemen in "follow-up" to dozens of US-UK airstrikes on Thursday
• The US says it targeted a "radar site" - local reports say the missiles hit at an air base near the Yemeni capital Sanaa
• The Houthis say there were no injuries, and vow a "strong and effective" response
• The US and UK strikes follow attacks by Yemen's Iran-backed Houthi rebels on merchant shipping in the Red Sea

• This morning, the UK's Maritime Trade Operations reported that a missile had missed a vessel in the Red Sea by 500 metres
• The ship was reportedly a Panama-flagged tanker carrying Russian oil
• Meanwhile in Gaza, Israel continuted its attacks overnight - the IDF says it destroyed a tunnel shaft containing explosive devices, and killed several "terrorists" in Khan Younis
• The Hamas-run health ministry in Gaza says 23,843 have been killed there since 7 October - an increase of 135 on Friday's total

Image source, Maxar

As we've been reporting, the attacks in the Red Sea and Yemen are linked to Israel's war in Gaza.

And, in an update on Saturday morning, the Hamas-run health ministry in Gaza says 23,843 have been killed there since 7 October.

That's an increase of 135 on Friday's total.

The ministry also says it has registered 60,317 wounded.

Image source, EPA

Here's more now from the Houthis - an official from its Ansarullah political bureau tells Al Jazeera, via Reuters, there were no injuries in the latest US strike on Yemen.

The official also vows a "strong and effective response" to the overnight attack.

A spokesperson for the Houthi rebels tells Reuters news agency the recent joint US-UK strikes on Yemen - including the attack last night - were "ineffective".

We'll have more when we have it.

Image source, Reuters

As we reported earlier, Iran backs the Houthis in Yemen - and the US believes Iran is "deeply involved" in planning Houthi attacks against cargo ships in the Red Sea.

With that in mind, it's perhaps unsurprising that Iran's foreign minister has praised the Houthi actions "against Israel" in the Red Sea, adding that Yemen is "committed to maritime and shipping security".

In a post on X, external on Friday evening, Hossein Amir-Abdollahian said: "Yemen's action in supporting the women and children of Gaza and its opposition to the Israeli regime's genocide is commendable."

He also urged the US to "immediately stop" its support for Israel - instead of launching strikes on Yemen - "so that security returns to the entire region".

Let's go back to Yemen - as we've been reporting, the US confirmed it carrried out a new strike on a Houthi target overnight.

So far, there's no confirmation of where the attack happened - with the US only saying it had "targeted a radar site" in "follow-up" actions to Thursday's strikes.

However, we have seen reports in Yemeni media this morning that an area near an air base in Sanaa, Yemen's capital, was hit.

We'll bring you more when we have it.

Image source, EPA

The Houthis say they are targeting vessels in the Red Sea owned by or bound for Israel, to show their support for Hamas in Gaza. Like the Houthis, Hamas are backed by Iran.

In Gaza, Palestinians faced another night of Israeli bombardment, with reports of strikes across the length of the Strip.

• In its morning update, the Israel Defense Forces (IDF) says it destroyed a tunnel shaft, containing explosive devices, and killed several "terrorists" in Khan Younis
• The Palestinian news agency Wafa also reports attacks on Gaza City in the north - with 20 reportedly killed
• In the Al-Dawa neighbourhood, north of Nuseirat in the centre of Gaza, "dozens" were reportedly killed, says Wafa
• The IDF says it located and destroyed two rocket launcher complexes in Al Mu'araqa in central Gaza

• In the occupied West Bank, three Palestinians were killed in what Israeli forces call the elimination of "terrorists” who infiltrated the Israeli settlement of Adora and attacked Israeli forces

• On Friday night, rockets were fired into southern Israel from Gaza
• And at the northern border with Lebanon, the IDF reports exchanges of fire on Saturday morning. The Israeli air force destroyed "terrorist" infrastructure, it adds

Image source, Reuters

The Houthis in Yemen are backed by Iran - and the US has accused Iran of being "deeply involved in planning the operations [since November] against commercial vessels in the Red Sea".

On Friday, the UK Defence Secretary Grant Shapps gave a warning to leaders in Tehran.

"You must get the Houthi rebels, others who are acting as proxies for you, Lebanese Hezbollah are obvious examples, [and] some in Iraq and Syria, you must get these different organisations to cease and desist because we are, the world is, running out of patience," he told the Daily Telegraph., external

"We see you, we see through what you're doing. We see how you're doing it, particularly the Houthi rebels, and no good can come from it."

Cargo ships taking the long route after Houthi attackspublished at 07:34 Greenwich Mean Time 13 January

07:34 GMT 13 January

These maps show why protecting the Red Sea shipping route is so crucial to the US and UK.

Major shipping firms have diverted their cargo away from the route since the Houthis first launched attacks in November.

There has been less of a reduction in oil and gas tankers, according to data from the Marine Traffic website - but the International Association of Independent Tanker Owners has advised shipping to avoid passing through the area, and to turn off their transmitters if they do so.

It’s also interesting to note that some ships passing the Yemen coast are listing no destination, or “no contact with Israel”. Others are declaring “armed guards on board”.

A missle was fired at a ship in the Red Sea late on Friday, in an apparent Houthi attack.

The missile was fired approximately 90 nautical miles south east of Aden, a city in Yemen, United Kingdom Maritime Trade Operations said in an update, external.

An officer on board said the missile landed in the water around 400-500m away from the vessel. The officer also reported being followed by three small craft.

There were no injuries or damage reported and the ship is travelling to the next port of call.

The shipping security firm Ambrey identified it as a Panama-flagged tanker carrying Russian oil.

In a separate update, external, UKMTO said it had received multiple reports of small boats approaching merchant shipping in the same area. Two small vessels are reported to have followed one ship for over an hour.

As a reminder, the US said on Saturday morning that since 19 November, "Iranian-backed Houthi militants have attempted to attack and harass vessels in the Red Sea and the Gulf of Aden 28 times.

"These illegal incidents include attacks that have employed anti-ship ballistic missiles, unmanned aerial vehicles, and cruise missiles."

Image source, Reuters

The latest attack on the radar site in Yemen was carried out with Tomahawk missiles. But what are they?

Tomahawks are land attack cruise missiles which are GPS-guided and can be programmed to fly evasively, the US military says.

They are long-range and primarily used by the US Navy and Royal Navy in ship and submarine-based land-attack operations.

They are designed to fly at extremely low altitudes at high subsonic speeds, according to the US Naval Air Systems Command.

The first operational use from the US was during Operation Desert Storm in the Gulf War in 1991.

Will Vernon
Reporting from Washington DC

The US Central Command suggested this Houthi radar station was not a new target – as we just reported, the strike was described as a "follow-on action" after the previous night’s attacks.

Hours earlier, President Biden had warned the US would respond if the Houthis continued what he called their "outrageous behaviour".

These fresh strikes are unlikely to result in any significant escalation in the region – this was clearly nowhere near on the same scale as the coordinated strikes on Thursday night, when around 30 Houthi-controlled sites were targeted by US-led forces.

President Biden has called the military action "a success".

But what the Houthis do next - and whether the US and its allies take any further action - will show whether Biden is right.

On Friday - after overnight attacks led by the US and UK - thousands of Houthi supporters protested in the Yemeni capital, Sanaa.

We'll bring you pictures of any further protests on Saturday when we have them.

Image source, Reuters

Image source, Reuters

Emily Atkinson
Live reporter

Good morning and welcome to our live coverage, after a new US attack on a Houthi target in Yemen in the early hours of Saturday morning.

As we reported overnight, the attack targeted a radar site with Tomahawk missiles launched from a ship, the US military said.

• This latest US action comes after the Iran-backed Houthi rebels warned they would carry out further attacks on ships in the Red Sea
• Saturday morning's US strike follows coordinated US-UK strikes on Thursday night, when around 30 Houthi-controlled sites were hit
• The Houthis' leader vowed to take revenge on Britain and the US
• UN chief Antonio Guterres called on all sides "not to escalate"