The UN had said Mr Pether's detention was illegal.
An Australian man who had been held in Iraq for five years is returning to his family in Roscommon this morning.
Robert Pether was jailed on fraud charges in 2021 after a contract dispute between the firm he worked for and the Central Bank of Iraq.
He was released from jail last year due to ill health.
The UN had said Mr Pether's detention was illegal.

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