Mike Lynch, the British software program tycoon, has been extradited to the US weeks after dropping a long-running authorized battle towards the transfer.

Sky News understands that Mr Lynch arrived in San Francisco on a United Airlines flight on Thursday lunchtime, paving the best way for the previous Autonomy chief to be tried on prison expenses.

One supply mentioned a choose in California had ordered that he pay a $100m bail bond in an effort to safe his launch throughout a listening to after his arrival within the US.

Mr Lynch's extradition had been anticipated since he misplaced a High Court battle final month.

He has discovered himself mired in litigation for years, after HP alleged that he and numerous colleagues had manipulated Autonomy's accounts to inflate its worth.

The firm's former finance chief, Sushovan Hussain, is serving 5 years in jail after conviction within the US in 2018.

Mr Lynch has argued that Autonomy's standing as a British firm, listed in London, meant that any expenses towards him needs to be introduced within the UK.

A civil case towards Mr Lynch resulted in HP "substantially succeeding" in its claims in January final 12 months, though Mr Justice Hildyard mentioned it was seemingly that the ensuing damages could be decrease than the $5bn being claimed by the American software program large.

The businessman's destiny has sparked a row by which outstanding British entrepreneurs and executives have protested at what they referred to as the "unreasonable" use of the extradition treaty between Britain and the US.

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In a letter to Rishi Sunak in February, figures together with Brent Hoberman, the co-founder of Lastminute.com, and FTSE-100 boardroom veterans akin to Lord Stevenson of Coddenham, the previous HBOS and Pearson chairman, argued towards the transfer to have Mr Lynch face trial within the US.

They mentioned it might see a treaty "enacted swiftly after 9/11 to enable the pursuit of terrorists deployed to settle a commercial case already being considered by the UK courts".

The group of signatories described this as "deeply worrying to anyone running a business in the UK".

"This sequence of events would clearly intrude on the sovereignty of the British courts and suggest the US can disregard our laws."

A spokesman for Mr Lynch declined to remark, whereas the US Department of Justice has been contacted for remark.