More than 300 South Koreans who were detained in a massive immigration raid at a Hyundai plant in the US state of Georgia last week are due to arrive home on Friday.

Their return comes as the country’s president and Hyundai’s chief executive have warned about the impact of the raid.

A chartered Korean Air jet carrying the workers and 14 non-Koreans who were also detained in the raid took off from Hartsfield-Jackson Atlanta International Airport at midday local time on Thursday (17:00 BST). One South Korean national has reportedly chosen to stay in the US to seek permanent residency.

The plane is expected to arrive at Incheon International Airport at about 15:30 Seoul time (07:30 GMT) on Friday.

The departure was delayed by more than a day because of an instruction from the White House, South Korean President Lee Jae Myung said on Thursday.

President Donald Trump ordered the pause to check whether the workers were willing to remain in the US to continue working and training Americans, according to a South Korean foreign ministry official.

The BBC has contacted the White House for comment.

Lee also said companies would be “very hesitant” about investing in the US following the raid.

“The situation is extremely bewildering,” Lee added, while noting it is common practice for Korean firms to send workers to help set up overseas factories.

“If that’s no longer allowed, establishing manufacturing facilities in the US will only become more difficult… making companies question whether it’s worth doing at all,” he added.

Seoul is negotiating with Washington on visa options for South Korean workers “whether that means securing [higher] quotas or creating new visa categories”, Lee said.

On Friday, the South Korean foreign ministry said it had called for the US Congress to support a new visa for Korean firms.

During meetings with US senators in Washington this week, Foreign Minister Cho Hyun reiterated concerns among South Koreans over the arrests, the ministry said in a statement.

Meanwhile, Hyundai’s chief executive José Muñoz has said the raid will delay the factory’s opening.

Mr Muñoz told US media that the raid will create “minimum two to three months delay [in opening the factory] because now all these people want to get back”.

Last week, US officials detained 475 people – more than 300 of them South Korean nationals – who they said were working illegally at the battery facility, one of the largest foreign investment projects in Georgia.

LG Energy Solution, which operates the plant with Hyundai, said that many of its employees who were arrested had various types of visas or were under a visa waiver programme.

A worker at the plant spoke to the BBC about the panic and confusion during the raid. The employee said the vast majority of the workers detained were mechanics installing production lines at the site, and were employed by a contractor.

South Korea, a close US ally in Asia, has pledged to invest tens of billions of dollars in America, partly to offset tariffs.

Media in the country have described the raid as a “shock,” with the Dong-A Ilbo newspaper warning that it could have “a chilling effect on the activities of our businesses in the United States”.

The Yonhap News Agency published an editorial on Thursday urging the two countries to “cooperate to repair cracks in their alliance”.

The timing of the raid, as the two governments engage in sensitive trade talks, has raised concern in Seoul.

The White House has defended the operation at the Hyundai plant, dismissing concerns that the raid could deter foreign investment.

On Sunday, US President Donald Trump referenced the raid in a social media post and called for foreign companies to hire Americans.

The US government would make it “quickly and legally possible” for foreign firms to bring workers into the country if they respected its immigration laws, Trump said.

Additional reporting by Hosu Lee in Seoul

A shop that has housed butchery businesses for more than 100 years could face the chop unless more people use it.

Jones Butchers has stood on Broad Street in Whittlesey, near Peterborough, since 1957 and before it, two other butchers dating back to the early 1900s have been there.

Mark Field, a butcher with 30 years’ experience, took over the business in June but has appealed for more customers on social media, putting his struggles down to the cost of living and the convenience of supermarkets.

Trade association National Craft Butchers (NCB) said beef prices were at an historic high, with the cost of meat generally rising 17%, which had made it tough for independent butchers.

After always working for other people in the butchery industry, Mr Field, 47, thought he would try and go it alone and run his own shop after an opportunity arose.

“I am not regretting taking it on because I have a love for the job and I’ve always wanted to do this,” he said.

But despite a summer perfect for barbecues, Mr Field said he had already been forced to cut down on staffing hours and upped his own shift patterns, working 60 hours a week.

“Things have picked up a bit since I made the plea for more customers on Facebook last week, so I will keep my fingers crossed”, he said.

But he added: “The cost of meat has been rising across the board, and I think younger people can sometimes feel intimidated by coming in to a shop where they have to ask for something. They prefer picking up meat in packs from a supermarket.”

Adrian Cornwell, who runs Bent and Cornwell in Ely, noticed that business had also been quieter this year.

“We can’t compete with supermarkets on prices, but what we can do is share our vast knowledge with our customers on how best to prepare various cuts of meat,” he said.

Mr Cornwell added that he had tried to replicate how the supermarkets displayed their meat, because “that’s what the shopper expects”.

He agreed with Mr Field that the younger generation seemed to forgo visiting butchers’ shops, preferring the convenience of the supermarket.

Beef prices have increased to historic highs of £7 per kg due to constrained supply and continued consumer demand, said NCB.

According to the British Retail Consortium, food prices rose by 4% in July from a year earlier.

Meat prices have also increased by 17% up to June this year.

John Mettrick, legislation director at NCB and a fifth generation butcher, said it was “tough for all businesses on the High Street, not just butchers”.

He said his own shop had managed to entice younger customers by selling “kitchen-ready” meals.

“I do a thing called ‘fake-a-ways’, stir fries, Indian dishes, all prepared ready for the oven, it saves so much time,” he said.