Fiji's interim prime minister, Commodore Frank Bainimarama, has issued a warning to non-Fiji citizens not to interfere in the country's internal affairs after ordering last Thursday's deportation of an US executive of the company, Fiji Water.
David Roth was declared a prohibited immigrant for acting in a manner prejudicial to good governance and public order.
Commodore Bainimarama issued the regime's directive from China, based on what he describes as reliable information verified and confirmed by relevant authorities.
The nature of Mr Roth's alleged breaches of his work permit has not been disclosed.
Two days before the deportation, the acting interim prime minister and interim immigration minister, Ratu Epeli Ganilau, resigned, saying he could not sign the removal order.
It is not clear who signed the deportation order but since Wednesday the immigration portfolio has been held by another regime member, Jonetani Cokanasiga, who also took over as acting interim prime minister.
The day after Mr Roth left Fiji, the information ministry said it was unaware of any deportation.
Fiji Water has made no comment.
The deportation cannot be appealed.