The Thai military administration on May 28 released several leaders of the United Front for Democracy against Dictatorship (UDD), or "red shirts", – an ally of the toppled civilian government.

The National Council for Peace and Order (NCPO) released UDD chairman Jatuporn Prompan and other figures such as Nuttawut Saikuar and Pracha Promnog.

The Bangkok Post on the same day quoted a reliable source at NCPO as saying that Thai former Prime Minister Yingluck Shinawatra is confirmed staying in Bangkok and not under house arrest.

Yingluck is allowed to travel freely in the country, but not to leave Thailand, and has to inform the NCPO if going outside Bangkok, the source said.

Earlier, she was held in army custody for one night after reporting to the NCPO on May 23 under the request of the military administration.

The Thai Army said the figures who were detained and then released since the army took over the administration have to pledge to stop political activities.-VNA