Thailand's military rulers detained former Prime Minister Yingluck Shinawatra on Friday, a senior officer said, after summoning her for talks a day after the army overthrew her caretaker government in a coup.

Yingluck was forced to step down as prime minister by a court on May 7 but her caretaker government, buffeted by more than six months of protests against it, had remained nominally in power, even after the army declared martial law on Tuesday.

US Secretary of State John Kerry said on Thursday there was no justification for a coup, which would have "negative implications" for ties with its ally, especially military ones.

Washington is reviewing its aid to Thailand and on Friday the US State Department said it had already suspended about $3.5 million in military aid, including a portion for training.


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