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Image source, Reuters

Science journalist and volcanologist Robin Andrews says the situation near Grindavik, south-west Iceland, is "pretty much a worst case scenario" now that lava has made its way into the town, which has been evacuated.

Speaking to the BBC, he warns that the aftermath of the eruption could prove "fairly problematic" for people with pre-existing respiratory problems.

Sulphur dioxide, a noxious gas that is an irritant to the skin, eyes, nose and throat, is released during volcanic activity.

"What can be said with certainty is that it's an extremely perilous and deleterious situation," he said.

A volcano on the Reykjanes peninsula erupted in the early hours of Sunday, spilling lava into the fishing town.

Sunday's eruption is the fifth to have taken place along the peninsula since 2021.

Strong earthquake tremors preceded a December eruption in the Svartsengi volcanic system. In the weeks since, walls were built around the volcano to direct molten rock away from Grindavik, home to some 4,000 people.

The Icelandic Meteorological Office (IMO) said the barriers had been breached in some places, allowing lava to reach the town which then set houses and buildings on fire.

A reminder that you can watch live footage of the eruption by pressing the Play button at the top of this page.

Good morning. We will continue to bring you text updates on the volcano and livestream the footage from Iceland.

If you're just joining us, welcome - and here's a quick recap of the main events:

• A volcano has erupted near the south-western Icelandic town of Grindavik, sending lava through the town and setting multiple houses on fire
• "No lives are in danger, although infrastructure may be under threat," Iceland's President Gudni Johannesson says
• He addressed the nation on Sunday night, telling those affected: "Together we will deal with this shock and whatever may come. Our thoughts and prayers are with you."
• The alert level has been raised to "emergency" - the highest of the three-level scale which signals there could be a threat of harm to people, communities, property or the environment
• Two separate fissures have been identified near Grindavik, both of which are spewing lava not far from the town
• Lava flow from the northern fissure now seems to have slowed and the flow from the southern fissure seems to have mostly stopped, according to the Icelandic news website Morgunbladid, external

Image source, EPA

Good morning. We're not providing text coverage on the latest from Iceland right now, but we are streaming live video from Grindavik in this page.

As well as watching the stream by clicking Play at the top of this page, you can flick back through our previous live page posts to see what happened after the volcano erupted during the early hours of Sunday morning.

You can also stay up to date by checking our news story.

Thanks for following our live coverage, as we shared pictures of lava from an Icelandic volcano spilling into the fishing town of Grindavik.

We are now pausing our coverage.

You can continue to read about the story, with our news article here.

The eruption is proving to be "the worst case scenario" according to one expert, with the entire population of the town being evacuated.

Defences built after an eruption in December have partially contained the lava, but some have been breached.

Addressing the nation in a live broadcast a little earlier, Iceland's President Gudni Johannesson urged Icelanders to "stand together and have compassion for those who cannot be in their homes."

In quotes cited by AFP news agency, he said he "hoped the situation would calm down, but anything can happen".

At a press conference beforehand, Prime Minister Katrin Jakobsdottir said: "Today is a black day for Grindavík and today is a black day for all of Iceland, but the sun will rise again."

"Together we will deal with this shock and whatever may come. Our thoughts and prayers are with you."

A reminder that you can watch what's happening on the ground by pressing the Play button at the top of this page. Text updates will be intermittent.

We've just heard that Iceland's President, Gudni Thorlacius Johannesson, will be addressing the nation tonight. That's expected at 20:00 GMT.

You can continue to watch what's happening on the ground by pressing the Play button at the top of this page.

Right now we're seeing lava bubble from a fissure close to the evacuated town of Grindavik. It's from this fissure that lava has spilled into the town and damaged homes.

All the residents of Grindavik have evacuated - but a group of sheep are still in pens inside the town, according to the Animal Protection Association of Iceland.

The chairperson of the organisation told state broadcaster RUV that there were 30 sheep in one pen, and more in a second.

Linda Karen Gunnarsdóttir said the animals needed to be rescued as soon as possible.

Some pets were also possibly trapped, she said.

As we've been reporting, two fissures opened today near the Icelandic town of Grindavik - both spewing lava.

The first formed early this morning around 1km (0.6 miles) from the town. You can see it at the top of the image.

Authorities say the lava flow from this fissure had largely stabilised before the second opened, around noon.

This fissure was much closer to Grindavik - less than 100m (320 feet) away.

The lava from that fissure has since spilled into the town, setting houses on fire.

Most of the lava from the eruption is flowing away from Grindavik thanks to protective barriers around the town, according to the Icelandic Met Office.

Workmen have been building a wall around Grindavik for the past few weeks, following an increase in seismic activity on the Reykjanes peninsula.

The walls were not fully ready, but Met Office spokesman Benedikt Halldorsson tells state broadcaster RUV that they still pushed most of the lava away from the town.

As we've been reporting, some lava has still reached Grindavik, and set houses on fire.

This is the second eruption on the peninsula in over a month, and the fifth since 2021.

As we've been reporting, lava has now reached the evacuated town of Grindavik, and multiple houses are on fire.

The footage below shows a swathe of lava flow into the town, covering the side of one house as it goes up in flames.

Later in the video, which was recorded from a helicopter, you can see where exactly the lava is coming from: a fissure that opened up close to the town a few hours ago.

The bulk of the lava field is further away from the town, covering the landscape.

A nearby volcano erupted early this morning.

The lava has reached the town of Grindavik, which was evacuated before the eruption.

Lava has spilled onto the town's streets and covered part of a house, which has burst into flames.

State broadcaster RUV says that the house was vacant even before the evacuation.

You can watch footage from Grindavik by pressing the play button at the top of this page.

Image source, Getty Images

Earlier, Grindavik's mayor Fannar Jonasson called the volcanic eruption a "big and serious shock for the population."

"This does not look good, because it is a relatively short way for the lava" to reach the town, he said.

The head of civil defence Vidir Reynisson had said that the lava was flowing towards the water pipes and electricity supply. It is unclear if they have been affected yet.

Latest reports say that a new fissure has opened just north of Grindavik, the Icelandic town closest to where the latest eruption has taken place.

The lava is now only 50m (160 feet) away from the nearest houses.

The main road leading to Grindavik has been cut off, and the local mayor describes the situation as ominous.

Image source, AFP

Olafur Arndal normally runs a restaurant in the fishing town of Grindavik.

He was at home when he received instructions from the Icelandic authorities to get to safety, and expresses his shock at what has happened.

"I'm flabbergasted that an eruption is possible under the town," he says, speaking to Eurovision News (EVN). "That's something I can't believe."

"We were waiting for an eruption up on the mountain but not underneath the town... Nobody knows what happens."

Image source, Facebook/President of Iceland

Iceland's President Gudni Johannesson says "no lives are in danger" after this morning's volcanic eruption.

In a post on X (formerly Twitter), external, Johannesson confirms the town of Grindavik was successfully evacuated overnight.

Some infrastructure may be in danger, he says, but adds there will no interruption to flights - as has happened during previous eruptions.

Image source, Getty Images

Iceland sits over what's known as the Mid-Atlantic Ridge, the boundary between the Eurasian and North American tectonic plates - two of the largest on the planet.

The Earth's crust is made up of different plates that move against each other, that have raised mountains and created volcanoes over millions of years.

The Eurasian and North American plates are moving apart by a few centimetres every year, making the country a hotbed of seismic and volcanic activity.

This allows magma to rise up to the surface, which erupts as lava and/or ash.

Icelanders are used to volcanic activity, and have built a successful tourism industry around it.

Other countries that sit on fault lines include Turkey - which, along with Syria, experienced the devastating earthquake in February last year.

Image source, Reuters

This is the second volcanic eruption on the Reykjanes peninsula in south-west Iceland in a month, and the fifth since 2021.

Last month, an eruption started in what's known as the Svartsengi volcanic system on 18 December.

The lava missed the town of Grindavik, although all its 4,000 residents had been evacuated beforehand.

Around 100 had returned to their homes before an evacuation order was again issued on Saturday, according to local authorities.

The alert level has been raised to "emergency" - the highest of the three-level scale which signals there could be a threat of harm to people, communities, property or the environment.

Image source, Reuters

A volcano is erupting in south-west Iceland - it started near the fishing town of Grindavik, which has been evacuated.

It began at about 03:00 GMT and Iceland's public broadcaster RUV says it is not clear which direction the lava is flowing.

"A crack has opened up on both sides of the dikes that have begun to be built north of Grindavik," the met office wrote.

Grindavik was evacuated in November and the Blue Lagoon, a popular tourist spot, was also closed. An eruption then took place in December but the lava flowed away from the town.

Iceland lies between the Eurasian and North American tectonic plates, two of the largest on the planet, and has 33 active volcano systems as the plates move in opposite directions.

Watch live by clicking the Play button at the top of this page.