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Patisserie Valerie has been saved from collapse after entrepreneur Luke Johnson, who owns 37% of the company, provided £20m in loans to the struggling chain.

Mr Johnson agreed to lend £10m for three years to owners Patisserie Holdings plc, which the company said would provide "immediate liquidity".

He has also provided a further bridging loan facility of up to £10m.

The firm said it had also raised another £15m by issuing new shares.

The directors said the company had required an immediate cash injection of no less than £20m, without which it could not continue trading in its present form.

The cafe chain has been fighting for survival after revealing on Wednesday it had uncovered "significant, and potentially fraudulent, accounting irregularities".

On Friday, the company said its finance director Chris Marsh had been arrested and released on bail.

The Serious Fraud Office said it had "opened a criminal investigation into an individual".

"We can give no further information or comment at this time," the SFO said, without naming the individual.

Patisserie Valerie's shares were trading at 429p before they were suspended on Wednesday.

Patisserie Holdings

It has five brands: Patisserie Valerie, Druckers - Vienna Patisserie, Philpotts, Baker & Spice and Flour Power City.

Now, there are 206 stores across the chain and more than 2,500 staff as of May 2018.

It was floated on the AIM stock market, for smaller companies, in 2014.

The first Patisserie Valerie café was opened on Frith Street in London's Soho district in 1926.

In 1987 the Scalzo family bought the Old Compton Street store and ran the business.

In 2006, Luke Johnson's Risk Capital Partners bought a majority stake when it had eight stores.

Mr Johnson, who invested in Patisserie Valerie in 2006, is a serial entrepreneur who is best known for taking control of Pizza Express in 1993 before selling out in 1999.

In 2001 he co-founded Risk Capital Partners, which owns stakes in companies including Majestic Bingo and swimming goods firm Zoggs.

Patisserie Holding's directors said in a statement that once the share issue and loans had taken effect, the company would be able to continue trading in its present form "for the foreseeable future".

"Following the initial investigation, the directors can confirm that the group has net debt of approximately £9.8m," the statement said.

However, it added that shareholders should be aware that investigations into the company's "financial irregularities" were at "a very preliminary stage".

The statement also said that the irregularities were also likely to have affected the historical financial statements of the company.

In its most recent results statement in May, the firm said it had cash reserves of £28.8m.