The lawyer for Myanmar's detained elected leader Aung San Suu Kyi said she was being kept at their homes but he was unable to meet her because they are still under investigation.

The lawyer for Myanmar's detained elected leader Aung San Suu Kyi and ousted President Win Myint said they were being kept at their homes but he was unable to meet them because they are still under investigation.

They were detained on Monday when the army seized power.

"We expect justice from the judge, but it is not certain. We hope for the best, but prepare for the worst. Of course, we want unconditional release as they have not broken the law," veteran lawyer Khin Maung Zaw told reporters in the capital, Naypyidaw.On Thursday, Myanmar's junta blocked Facebook, trying to shut off an important channel for opposition to this week's military coup as sporadic protests flared.

Military ruler General Min Aung Hlaing has moved quickly to consolidate his hold after overthrowing elected leader Aung San Suu Kyi and detaining her and allied politicians on Monday.

Military Coup in Myanmar: After Facebook, Country Blocks Access to Twitter, Instagram

He told a business group on Wednesday he could keep power for six months after a one-year state of emergency ends in order to hold what he said he would be fair elections.

But in a show of defiance to the generals, a group of the lawmakers elected in a Nov. 8 ballot convened a symbolic parliamentary session in the quarters where they have been staying since the takeover.

Small protests took place in the main city Yangon and elsewhere, with activists saying three protesters had been arrested - among around 150 people who have been detained since the coup, according to one rights group.

Doctors also spearheaded a campaign of civil disobedience.