Ousted Thai leader Yingluck Shinawatra has arrived for talks with the military in Bangkok, a day after the army took power in a coup.
Yingluck is one of more than 100 political figures summoned by the army.
The army has banned 155 people, including some politicians, from leaving the country.
— BBC World Service (@bbcworldservice) May 23, 2014
On Thursday, the military suspended the constitution, banned gatherings and detained politicians, saying order was needed after months of turmoil.
The coup, which followed months of anti-government protests, has drawn widespread international criticism.
— BBC Radio 4 Today (@BBCr4today) May 23, 2014
The move came two days after the army declared martial law.
US Secretary of State John Kerry said there was "no justification" for the coup, adding that $10m (£6m) in bilateral aid could be suspended.
— Tech in Asia (@Techinasia) May 23, 2014
The UN expressed serious concern. Secretary General Ban Ki-moon urged a "prompt return to constitutional, civilian, democratic rule".
Thais, meanwhile, spent the night under a curfew which ran from 22:00 to 05:00. Bangkok was reported to be largely peaceful.
Protesters packed up and left the pro-government "red shirt" camp on Bangkok's western outskirts without violence.
— The Straits Times (@STcom) May 23, 2014
Television has been restricted to broadcasts by the military. The BBC, CNN and other channels are off air.
'WORK AS NORMAL'
Military leader General Prayuth Chan-Ocha - who has appointed himself the new prime minister - said troops were taking power "in order for the country to return to normal quickly".
"All Thais must remain calm and government officials must work as normal," he said in a televised address.
Political factions had been holding talks for two days. Several key figures, including opposition protest leader Suthep Thaugsuban and pro-government protest leader Jatuporn Prompan, were immediately detained.