Thailand's army has told acting Prime Minister Niwatthamrong Boonsongphaisan and his ministers to report to a military compound in the north of Bangkok on Thursday, Reuters reported.
Deputy Army Spokesman Winthai Suvaree issued the order in a televised statement hours after the army staged a coup to oust the government.
The Nation in Bangkok had earlier reported that the acting PM's whereabouts are not yet known after the armed forces seized the power.
Niwuttumrong was not attending the meeting hosted by Army Commander in Chief Gen Prayuth Chan-ocha at the Royal Army Club, it said.
All warring groups were invited to the meeting today.
The premier was absent from the meeting since the first day, claiming he was the premier and will not attend the meeting hosted by the army chief, The Nation said.