Australian Prime Minister Julia Gillard has called Fiji's expulsion of Australia's top diplomat¹ "uncalled for and of grave concern".

澳大利亚总理茱莉亚·杰拉德称，斐济驱逐澳大利亚首席外交官一事是“不适宜的“并对此”严重关切”。

Fiji's military rulers have given Australia's acting²（代理的） high commissioner³, Sarah Roberts, 24 hours to leave.

Canberra has strongly criticised Fiji's military regime（军事政权） , which came to power（当权，执政） in a 2006 coup⁴ and has since imposed a series of repressive measures.

The two sides expelled（开除，驱逐） each other's most senior envoys⁵ late last year.

"Obviously our attitude to this is we are gravely concerned that Fiji continues to take itself beyond and outside the workings of the international community," Ms Gillard told reporters in Canberra.

"We will be making very, very clear to Fiji our protest about this unreasonable⁶ and uncalled for action."

Earlier, Foreign Minister Stephen Smith said the decision to expel Ms Roberts was "unjustified and unjustifiable（不合道理的） ".

But he promised not to dismiss Fiji's remaining senior diplomat in Australia.

Summit wrangles⁷

It is unclear why Fiji took the latest action, but Mr Smith said Suva was angry with Canberra because of disagreements over scheduled meetings of various Pacific island political groups.

Fiji was suspended from the main regional bloc⁸, the Pacific Islands Forum⁹, at the urging of Australia and New Zealand.

The forum is due to meet next month, but Fiji has convened¹⁰（召集，召唤） a meeting of another smaller talking shop, the Melanesian Spearhead Group, next week in a move seen by analysts¹¹ as an attempt to upstage the forum.

Australia has angered Fiji by lobbying against the Melanesian（美拉尼西亚） meeting.

Such spats¹²（争执） have been going on since Cmdr Frank Bainimarama came to power in 2006.

Australia and New Zealand have urged Cmdr Bainimarama to return to civilian¹³ rule as soon as possible, but he has said elections will not be held before 2014.