Thailand army declares martial law
Thailand's army declared martial law in a surprise announcement in Bangkok.
It was not immediately clear whether a coup d'etat was under way.
The move comes after six months of anti-government demonstrations aimed at ousting the government.
The army said in a statement that it took the action to "keep peace and order".
The announcement came a day after the south-east Asian country's caretaker prime minister refused to step down.
Soldiers entered several private television stations sympathetic to protesters.
A ticker on Channel 5, an army station, however, denied the military was taking over, saying "the invocation of martial law is not a coup".
Thailand's army has staged at 11 successful coups since the end of absolute monarchy in 1932.