YANGON (Reuters) - Myanmar's junta allowed a doctor to visit detained opposition leader Aung San Suu Kyi on Monday after barring access to the ailing Nobel Peace laureate over the weekend, a spokesman for her party said.

 

Nyan Win of the National League for Democracy (NLD) said he had no update on Suu Kyi's condition after she was diagnosed with low blood pressure and dehydration on Friday and put on an intravenous drip.

 

Rights groups have accused the regime of denying the 63-year-old Suu Kyi adequate medical care after her personal doctor, Tin Myo Win, was detained for questioning last week.

 

His assistant, Pyone Mo Ei, was barred this weekend from visiting Suu Kyi's lakeside home in Yangon where the NLD leader has spent most of the past six years under house arrest.

 

The Burma Campaign UK, a pro-democracy group, urged the United Nations and Myanmar's regional neighbors to put pressure on the junta to allow Suu Kyi to receive proper medical care.

 

"The situation is potentially too serious for the international community to just wait and see what happens," Nang Seng, a campaign officer for the group, said in a statement.

 

Suu Kyi, whose party won 1990 elections only to be denied power by the military which has ruled the former Burma for more than four decades, has been detained for more than 13 of the past 19 years.

 

For most of those years she has been held virtually incommunicado at her lakeside villa, with her telephone line cut, her mail intercepted and visitors restricted.

 

Security at Suu Kyi's home was stepped up after an American citizen was arrested on May 6 after he claimed to have swam across Inya Lake and spent two days in her compound.

 

The U.S. embassy was still waiting for permission to see the man, whom state media identified as John William Yeattaw.

 

Source : Reporting by Aung Hla Tun; Editing by Darren Schuettler