An American nurse will be released from an Indonesian jail later in this week after serving a four-month sentence for contacting separatist rebels, her attorney said today.

Joy Lee Sadler, of Waterloo, Iowa, was found guilty last week of violating her tourist visa by contacting guerrillas in Aceh province and was sentenced to four months in prison. Her companion, Lesley Jane McCulloch, a Scottish-born scholar at Australia's Tasmania University, was convicted of the same charges and sentenced to five months.

Sadler's attorney, Rufriadi Ramli, said his client would be released Friday. He did not comment on McCulloch.

The women were arrested Sept. 11 and had already served most of their time when the court found them guilty.

Both Sadler and McCulloch began hunger strikes to protest their arrest. Sadler, who said she is HIV-positive, said her 39-day strike made her seriously ill and on Friday demanded to be hospitalized. But she said no hospital in Aceh would admit her because of her condition.

Both women denied the charges against them.

Sadler said she was in Aceh on vacation and had treated children and the elderly at a refugee camp there. McCulloch has researched the separatist uprising in Aceh for several years, but said she was not conducting research when she was detained.