Indonesia summoned the Swedish ambassador to express disappointment at his country's response to a demand for action against exiled Acehnese rebel leaders.

The summons came as the Swedish embassy in Jakarta said it had received a "specific threat" that forced the closure of the mission. "The embassy of Sweden is closed until further notice," a telephone recording at the diplomatic mission said.

A woman identifying herself as the embassy's third secretary said the mission had closed after receiving a "specific threat" but she refused to elaborate and referred inquiries to Stockholm.

Indonesian Foreign Minister Hassan Wirayuda said he had summoned ambassador Harald Nils Erik Sandberg because the Swedish response "is far from what we had hoped." Wirayuda told reporters that Sweden ranked bilateral relations lower than "protecting a citizen, in this case a GAM figure, in Sweden." Hasan Tiro, who founded the Free Aceh Movement (GAM) in 1976, has lived in Sweden since 1979. Like some other exiled GAM leaders, he has acquired Swedish citizenship.

Indonesia, which on May 19 launched a major military operation to crush the rebels in Aceh, wants Stockholm to take unspecified action against Tiro and others. But Sweden has told Indonesia it has no legal grounds to take action unless GAM leaders break laws there.

Vice President Hamzah Haz and some leading legislators have called for action against Sweden if it fails to comply with Indonesia's request.

Wirayuda said a cabinet meeting to be chaired by President Megawati Sukarnoputri later Monday would decide on the next step. Defence Minister Matori Abdul Jalil said the government was likely to downgrade diplomatic relations.