Embattled UK travel firm Thomas Cook on Friday sought a further emergency capital injection, or risk a collapse that could trigger Britain's largest repatriation since World War II.
Thomas Cook said in a statement that it needed £200 million ($250 million, 227 million euros) -- in addition to the £900-million rescue deal secured last month that handed control of its tour operator business to Chinese peer Fosun.
Sources said a collapse of the group, which some reports said could come as soon as the weekend, would mean the repatriation of 600,000 tourists, including 150,000 seeking government help returning to the UK.
"We can confirm that a contingency plan exists to deal with this situation," Richard Taylor, spokesman for Britain's Civil Aviation Authority told AFP.
"We cannot discuss the details of this plan but we have run similar operations in the past."
Two years ago, the collapse of Monarch Airlines prompted the British government to take emergency action to return home 110,000 stranded passengers, costing taxpayers some £60 million on hiring planes.
The government at the time described it as Britain's "biggest-ever peacetime repatriation".
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When sparkling blue seas and a comfy sun lounger is only a 2.5 hour flight away… . #ThomasCook #holiday #Majorca #Balearics #explore #relax #getaway #sunshine #instagood #instadaily #wanderlust
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Meanwhile a fresh recapitalisation for Thomas Cook "is expected to result in existing shareholders' interests being significantly diluted, with significant risk of no recovery", the embattled company said Friday.
Shares in Thomas Cook, which have collapsed already in recent months, dived Friday to stand down almost 20 percent at just 3.6 pence ahead of the London close.
"The travel group is at risk of collapsing if it doesn’t receive the financing," noted David Madden, analyst at trading group CMC Markets UK.
Thousands of workers could also lose their jobs, with Thomas Cook employing about 22,000 staff worldwide, including 9,000 in Britain.
Fosun, which was already the biggest shareholder in 178-year-old Thomas Cook, agreed last month to inject £450 million into the business.
In return, the Hong Kong-listed conglomerate acquired a 75-percent stake in Thomas Cook's tour operating division and 25-percent of its airline unit.
Creditors and banks agreed to inject another £450 million under the recapitalisation plan announced in August, converting their debt in exchange for a 75-percent stake in the airline and 25 percent of the tour operating unit.
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Announcing Friday the need for more funds, Thomas Cook said: "Discussions to agree final terms on the recapitalisation and reorganisation of the company are continuing between the company and a range of stakeholders, including its largest shareholder, Fosun Tourism Group."
Thomas Cook in May revealed that first-half losses widened on a major write-down, caused in part by Brexit uncertainty that delayed summer holiday bookings. The group, which has around 600 stores across the UK, has come under pressure also from fierce online competition.