Here's a look at the scene outside the presidential compound, where protesters have gathered as investigators are trying once more to arrest impeached president Yoon Suk Yeol:

Shaimaa Khalil
Reporting from outside the presidential residence

The numbers have really been ramped up this time around in terms of law enforcement. We understand up to 1,000 police officers have been deployed.

Right now, the police seem to be pushing into the residence - entering from multiple points.

Investigators are also trying to get into the presidential residence through the back of the compound.

Shaimaa Khalil
Reporting from Seoul

This is a picture of the political crisis that South Korea finds itself in.

You've got two branches of executive power: the police - essentially law enforcement officers that have a legal arrest warrant that they're trying to execute - and presidential security staff, who are blocking them.

This raises the question of who exactly is in charge.

Both say they're following orders and following the rule of law, but what that tells you is that there are potential clashes between them as two orders of power.

All of this is happening while the president himself is yet to appear in an impeachment trial.

There are, in a way, two parallel crises happening at once, with the South Korean public watching in real time - anti-Yoon protesters on one side, pro-Yoon protesters on the other.

Shaimaa Khalil
Reporting from outside the presidential residence

There’s been a spike in tensions in front of the police barricade leading to the presidential compound as ruling party lawmakers have pushed their way through the barricade and through a huddle of anti-Yoon protesters.

The lawmakers are blocking officers from the Corruption Investigation Office (CIO) who have been outside the compound gate. They had argued with the lawmakers that they have a legal right to make the arrest.

The lawmakers formed a human wall to prevent the investigators as they presented them with the arrest warrant.

As it stands, police and CIO investigators are unable to get into the compound.

Meanwhile, anti-Yoon protestors in the crowd are continuing to chant “arrest him”.

Colleagues of ours have been looking at a live broadcast of the scenes outside President Yoon's official residence.

They say Yoon's lawyers have arrived and appear to be arguing with the police.

It's been reported by Yonhap, South Korea's news agency, that the arrest team had previously warned the legal team that they may be taken into custody if they blocked the path to Yoon.

Shaimaa Khalil
Reporting from Seoul

We're at the closest point to the the alleyway that leads up to the entrance of the presidential compound - it's a lot closer than we were able to get last time.

But our view is blocked by dozens of police who are restricting movement close to the compound.

There are barricades in almost every direction and we’re close to the protesters, with many wrapped in thermal blankets.

There are chants of "arrest Yoon", mixed in with the songs Fire by Korean band BTS and APT by New Zealand and South Korean singer Rosé. The mood seems somewhat cheerful as critics of Yoon feel his arrest is imminent.

Meanwhile, supporters of Yoon are carrying banners which read "stop the steal", alongside Korean and US flags.

Police are said to have ramped up the numbers this time around - deploying about 1,000 officers

Thousands of President Yoon's supporters, including members of his ruling party, have amassed outside his official residence.

It had been widely anticipated that authorities would be making their second attempt to try and arrest the president around this time in Seoul.

We're starting to receive some images from the scene now, which you can see here:

Image source, Reuters

Image source, Reuters

Image source, Reuters

While investigators in South Korea try once again to arrest President Yoon Suk Yeol, following a failed attempt earlier this month, here's a reminder of how we got here.

• 3 December: President Yoon declared martial law, plunging South Korea into political chaos - hours later he was forced to back down as furious protestors and lawmakers gathered outside the National Assembly. He then apologised for his actions and said they would not be repeated
• 7 December: Opposition MPs tried, but failed, to impeach Yoon having fallen a handful of votes short

• 14 December: Yoon was suspended from office after another vote saw lawmakers vote to impeach him, however the president can only be removed from office if the decision is upheld by the country's constitutional court
• 31 December: A court in South Korea issued an arrest warrant for Yoon
• 3 January: Dozens of investigators attempted to arrest him but subsequently gave up after a six-hour stand off with the Presidential Security Service (PSS) outside his official residence
• 14 January: South Korea's Constitutional Court held its first hearing to decide if the suspended president should be removed from office - the hearing ended in just four minutes because of Yoon's absence and the next trial is scheduled for Thursday

Despite a court-issued arrest warrant for Yoon, who has ignored multiple orders to appear for questioning over his martial law order, it has proven difficult for investigators to reach him.

Dozens of investigators gave up on arresting Yoon on 3 January after a six-hour-long stand off with the Presidential Security Service (PSS) outside his residence.

Park Jong-joon, who was appointed chief of the presidential security service by Yoon last September, has maintained that security staff were doing their duty of protecting the sitting president.

But Mason Richey, an associate professor at Seoul's Hankuk University of Foreign Studies, said the presidential security service could have acted out of loyalty to Yoon or under "a misguided understanding of their legal and constitutional role".

"It may well be the case that Yoon has seeded the organisation with hardline loyalists in preparation for precisely this eventuality," said US-based lawyer and Korea expert Christopher Jumin Lee.

• Get more information on why investigators can't seem to arrest Yoon

South Korean authorities, who are investigating impeached President Yoon Seok Yeol, have visited his official residence to execute an arrest warrant for the second time, local media is reporting.

They had tried to arrest Yoon on 3 January but had to turn back after being locked in an hours-long stand-off with members of the Presidential Security Service (PSS).

The Corruption Investigation Office (CIO) - set up to investigate high-ranking officials - is the agency trying to arrest Yoon. They are investigating him on charges of abuse of power and inciting an insurrection when he tried to impose martial law in early December 2024.

Stick with us as we bring you the latest developments.