Sri Lanka is in the midst of a deep and unprecedented economic crisis that has sparked huge protests and seen its president quit after fleeing the country - but other countries could be at risk of similar troubles, according to the head of the International Monetary Fund (IMF), BBC reported.

"Countries with high debt levels and limited policy space will face additional strains. Look no further than Sri Lanka as a warning sign," said IMF Managing Director Kristalina Georgieva on Saturday.

She said developing nations had also been experiencing sustained capital outflows for four months in a row, putting their dreams of catching up with advanced economies at risk.

Sri Lanka is struggling to pay for crucial imports like food, fuel and medicine for its 22 million people as it battles a foreign exchange crisis. Inflation has soared about 50%, with food prices 80% higher than a year ago. The Sri Lankan rupee has slumped in value against the US dollar and other major global currencies this year.

Many blame ex-President Gotabaya Rajapaksa for mishandling the economy with disastrous policies whose impact was only exacerbated by the pandemic. 

Over the years, Sri Lanka had built up a huge amount of debt - last month, it became the first country in the Asia Pacific region in 20 years to default on foreign debt.

Officials had been negotiating with the IMF for a $3bn (£2.5bn) bailout. But those talks are currently stalled amid the political chaos.

But the same global headwinds - rising inflation and interest rate hikes, depreciating currencies, high levels of debt and dwindling foreign currency reserves - also affect other economies in the region, according to BBC.

China has been a dominant lender to several of these developing nations and therefore could control their destinies in crucial ways. But it's largely unclear what Beijing's lending conditions have been, or how it may restructure the debt.

Where China is at fault, according to Alan Keenan from International Crisis Group, is in encouraging and supporting expensive infrastructure projects that have not produced major economic returns. 

"Equally important has been their active political support for the ruling Rajapaksa family and its policies... These political failures are at the heart of Sri Lanka's economic collapse, and until they are remedied through constitutional change and a more democratic political culture, Sri Lanka is unlikely to escape its current nightmare."

Worryingly, other countries appear to be on a similar trajectory, BBC reported.