Myanmar pro-democracy opposition leader Aung San Suu Kyi is to face trial for breaching the conditions of her detention under house arrest, her lawyer has said.

The charges come a week after the arrest of John William Yettaw. The American national was detained by police for swimming across a lake and staying at her off-limits residence for two days. He was arrested as he tried to leave the residence.

Ms Suu Kyi and her two maids were taken to the notorious Insein prison outside Rangoon where the charges were read to them. Under the conditions of her house arrest, the leader of the National League for Democracy is not permitted to invite people to visit her. Ms Suu Kyi denies inviting Mr Yettaw to her home. Her trial date, along with that of her maids, has been set for next Monday.

Mr Yettaw also appeared in court, charged with breaching the security law and with immigration violations. No date has yet been set for his hearing.

Ms Suu Kyi, a Nobel Peace laureate, has been under house arrest for much of the past 19 years. The latest detention began in May 2003, after clashes between Myanmar's military junta and opposition demonstrators. The current house arrest was due to expire at the end of this month.