Stockholm – Sweden will pay 10,000 kronor (1,050 euros, 1,250 dollars) in compensation to one of the exiled leaders of Indonesia's separatist Free Aceh Movement (GAM) for remanding him in custody last year, his lawyer said Monday.

"The compensation is because of the suffering during the time he spent in custody between the 15th and the 18th of June, Zaini Abdullah's lawyer, Sargon De Basso, told AFP. He said the amount to be paid was "sufficient".

Sweden detained Abdullah, the GAM's self-styled foreign minister, in June last year for "violating international law".

The separatist movement's exiled "prime minister" Malik Mahmud, was also briefly detained while ailing GAM co-founder Hasan di Tiro was stopped for questioning but later released. A court said there was not enough evidence to keep them in custody.

A Swedish prosecutor in April dropped a preliminary investigation into Abdullah and Mahmud as there was no proof they were linked to terrorist activities in Indonesia, contrary to claims by the government in Jakarta.

Indonesia has accused the pair of masterminding killings, arson attacks and kidnappings from Stockholm where they live in exile and has asked the Swedish government to act.

The rebels have been fighting for three decades for the independence of Aceh, Indonesia's westernmost province. The conflict that has left more than 12,000 people – mostly civilians – dead.

A peace process which collapsed in 2003 ahead of a military offensive to crush the rebels was restarted in the wake of last year's tsunami disaster in which 128,000 people were killed in Aceh.

The military said last month it had killed more than 3,300 rebels since it launched the offensive two years ago. Over 200 soldiers had been killed and more than 500 wounded, it said.

Peace talks between Jakarta representatives and exiled GAM leaders have been held in Helsinki since January. The next meeting is to be held on July 12.