Greta Marie Otteson, 33, was discovered by staff dead on a bed in a first-floor room in Hoi An, a coastal city in the central region of the south-east Asian nation, at around 11:18 local time (04:18 GMT) on 26 December, police said in a statement on Monday.

Her fiance Els Arno Quinton, 36, was found dead on a bed in another room in the villa that had reportedly been locked from the inside.The UK Foreign Office confirmed it was in contact with local authorities and supporting the family of a British woman who had died in Vietnam.

Ms Otteson was a social media manager, and Mr Quinton was a musician and livestreamer.

A video announcing their engagement was posted on Instagram by videography company Red Eye Studios on 11 December.

Both had registered for long-term temporary residence at the Hoa Chuong villa, in the Cam Thanh commune, since last summer.

Police said a preliminary inspection of the bodies had found no signs of external force and that the rooms showed no sign of burglary.

Local media reports that several empty bottles of wine were found at the scene.An investigation into the cause of the pair’s deaths is ongoing.

A spokesperson for the UK Foreign Office said in a statement: “We are supporting the family of a British woman who has died in Vietnam and are in contact with the local authorities.”

On Tuesday, the price for Arabica beans, which account for most global production, topped $3.44 a pound (0.45kg), having jumped more than 80% this year.

The cost of Robusta beans, meanwhile, hit a fresh high in September.

It comes as coffee traders expect crops to shrink after the world’s two largest producers, Brazil and Vietnam, were hit by bad weather and the drink’s popularity continues to grow. One expert said coffee brands were considering putting prices up in the new year.

While in recent years major coffee roasters have been able to absorb price hikes to keep customers happy and maintain market share, it looks like that’s about to change, according to Vinh Nguyen, the chief executive of Vinh Nguyen Tuan Loc Commodities.

“Brands like JDE Peet (the owner of the Douwe Egberts brand), Nestlé and all that, have [previously] taken the hit from higher raw material prices to themselves,” he said.

“But right now they are almost at a tipping point. A lot of them are mulling a price increase in supermarkets in [the first quarter] of 2025.”

At an event for investors in November, a top Nestlé executive said the coffee industry was facing “tough times”, admitting his company would have to adjust its prices and pack sizes.

“We are not immune to the price of coffee, far from it,” said David Rennie, Nestlé’s head of coffee brands.

The last record high for coffee was set in 1977 after unusual snowfall devastated plantations in Brazil.”Concerns over the 2025 crop in Brazil are the main driver,” said Ole Hansen, head of commodity strategy at Saxo Bank.

“The country experienced its worst drought in 70 years during August and September, followed by heavy rains in October, raising fears that the flowering crop could fail.”

It is not just Brazilian coffee plantations, which mostly produce Arabica beans, that have been hurt by bad weather.

Robusta supplies are also set to shrink after plantations in Vietnam, the largest producer of that variety, also faced both drought and heavy rainfall.

Coffee is the world’s second most traded commodity by volume, after crude oil, and its popularity is increasing. For example, consumption in China has more than doubled in the last decade.

“Demand for the commodity remains high, while inventories held by producers and roasters are reported to be at low levels,” said Fernanda Okada, a coffee pricing analyst at S&P Global Commodity Insights.

“The upward trend in coffee prices is expected to persist for some time,” she added.

The 68-year-old is now in a race for her life because the law in Vietnam states that if she can pay back 75% of what she took, her sentence will be commuted to life imprisonment.

In April the trial court found that Truong My Lan had secretly controlled Saigon Commercial Bank, the country’s fifth biggest lender, and taken out loans and cash over more than 10 years through a web of shell companies, amounting to a total of $44bn (£34.5bn).

Of that prosecutors say $27bn was misappropriated, and $12bn was judged to have been embezzled, the most serious financial crime for which she was sentenced to death.

It was a rare and shocking verdict – she is one of very few women in Vietnam to be sentenced to death for a white collar crime.

On Tuesday, the court said there was no basis to reduce Truong My Lan’s death sentence.

However, she could still avoid execution if she returns $9bn, three-quarters of the $12bn she embezzled. It’s not her final appeal and she can still petition the president for amnesty.

During her trial Truong My Lan was sometimes defiant, but in the recent hearings for her appeal against the sentence she was more contrite.

She said she was embarrassed to have been such a drain on the state, and that her only thought was to pay back what she had taken.

Born into a Sino-Vietnamese family in Ho Chi Minh City, Truong My Lan started as a market stall vendor, selling cosmetics with her mother. She began buying land and property after the Communist Party introduced economic reform in 1986. By the 1990s, she owned a large portfolio of hotels and restaurants.

When she was convicted and sentenced in April, she was the chairwoman of a prominent real estate firm, Van Thinh Phat Group. It was a dramatic moment in the “Blazing Furnaces” anti-corruption campaign led by then-Communist Party Secretary-General, Nguyen Phu Trong.

All of the remaining 85 defendants were convicted. Four were sentenced to life in jail, while the rest -including Truong My Lan’s husband and niece – were given prison terms ranging from 20 years to three years suspended.

The State Bank of Vietnam is believed to have spent many billions of dollars recapitalising Saigon Commercial Bank to prevent a wider banking panic. The prosecutors argued that her crimes were “huge and without precedent” and did not justify leniency.

Truong My Lan’s lawyers said she was working as fast as she could to find the $9bn needed. But cashing in her assets has proven difficult.

Some are luxury properties in Ho Chi Minh City which could, in theory, be sold quite quickly. Others are in the form of shares or stakes in other businesses or property projects.

In all the state has identified more than a thousand different assets linked to the fraud. These have been frozen by the authorities for now. The tycoon has also reached out to friends to raise loans for her to help reach the target.