YANGON, Jan 13 (Reuters) - A bomb exploded in the women's toilet at the main railway station in Yangon on Sunday, two days after a similar attack killed at least one person near military-ruled Myanmar's new capital, officials said.

They said one woman was wounded but declined to give further details of the blast in Yangon, the country's biggest city and scene of major biggest anti-junta demonstrations last year.

On Friday, a woman was killed by a bomb that exploded in the toilet of the railway station serving Naypyidaw, the new capital in jungle-clad hills 240 miles (380 km) north of Yangon to which the generals moved in November 2005.

Small bomb blasts at public places such as Buddhist temples, markets and fairs are relatively common in the former Burma, which has been under military rule since 1962 and riven by multiple ethnic guerrilla conflicts.

The junta normally points the finger at dissident groups, ranging from exiled pro-democracy activists to ethnic militias who have been fighting for greater autonomy or even independence for more than five decades.

Official newspapers said a bomber was killed and four people were wounded when the bomb he was preparing to plant went off prematurely near a circus in Pyu Township on the Yangon-Mandalay road on Friday evening.

They said a captured accomplice identified the bomber as a member of the Karen National Union, one of the guerrilla armies fighting for autonomy of the Karen region. (Reporting by Aung Hla Tun; Editing by Michael Battye and Jerry Norton)

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