Her party, the National League for Democracy, says Suu Kyi will not travel outside the main city of Rangoon in the lead up to the April 1 polls.
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The Nobel laureate’s doctor Tin Myo Win, said Suu Kyi was put on a drip Saturday, after vomiting when her boat got stuck on a sandbank for several hours. She had been on her way to the southern town of Myeik, where she was due to give a speech.
Myo Win said Suu Kyi’s health had later deteriorated, and her blood pressure was low. "She is exhausted because of being on the boat for such a long time," he told AFP.
President Thein Sein has called for “free, fair and clean” by-elections, local media reported.
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Speaking on Saturday while attending the opening of a bridge in Pathein in the Irrawaddy Delta, Thein Sein said:
“This coming by-election is a first-ever election which will be held by the new government and the world will be watching us … All political parties must accept the people's decision, whether win or lose.”
Suu Kyi is expected to win a seat at the polls and become the opposition leader in parliament, Deutsche Presse-Agentur reported.
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