CALCUTTA, NOV. 10 -- Two Burmese students demanding the release of democracy activists hijacked a Thai jetliner today to Calcutta, where they surrendered to Indian authorities.

The last of the 221 passengers and crew aboard the plane were released unharmed about eight hours after the Thai Airways Airbus 300 landed.

The two hijackers told a news conference that they were unarmed and carried only fake bombs made out of bars of soap with protruding wires.

Ye Marn, 24, and his companion, Ye Htink Yaw, 22, said they never intended to harm the passengers and crew. They said their goal was to win publicity for democracy activists struggling against military rule in Myanmar, formerly Burma.

The plane was hijacked during a flight from Bangkok to Yangon, formerly Rangoon, the capital of Myanmar. Indian officials initially said the hijackers carried hand grenades and guns, citing reports from released passengers.

The hijackers freed the passengers and crew in phases, giving one of the first groups a list of demands. It was signed with three names and bore three thumbprints in blood, according to Manish Gupta, home secretary of West Bengal state.

{The students made their plans known before staging the hijacking, sending a copy of their demands to Swedish journalist Bertil Lintner in Bangkok Saturday, Washington Post special correspondent Mary Kay Magistad reported.}

The hijackers had demanded the release of opposition leader Aung San Suu Kyi, who is under house arrest in Yangon, and two Burmese students jailed in Thailand for hijacking a Burmese plane last year to dramatize demands for freedom from military rule.

Other demands included an end to martial law, the release of all political prisoners and cancellation of all military tribunals and the sentences imposed by them, Gupta said.

"We wanted to draw international attention and international support for our human rights and democracy {campaign}," Ye Marn said. "Our mission has been fulfilled."

There was no immediate word on what would happen to the two.

The hijackers called themselves "The Justice and Liberation Warriors." Ye Htink Yaw said they were students at Yangon University.

{Students played a prominent role in a 1988 democracy movement that was crushed by Myanmar's military government, and many students who fled the country after the crackdown have continued their opposition activities in exile. An estimated 2,400 Burmese students remain on the Thai-Burmese border, many of them working with ethnic groups that have been fighting Myanmar's military rulers for decades, Magistad reported from Bangkok.}