Tanks and troops carriers rumbled through the streets of Bangkok on March 2 as the Thai Government declared a nationwide state of emergency. People were warned not to gather in the streets. Emergency regulations signed by the Prime Minister, Field Marshal Pibul Songgram, and read over the radio said the action was taken against a group of persons conspiring with "foreign nations" to overthrow the Government. The radio bulletin said the reason for the emergency was "unrest among the Opposition" following the February 26 elections. It added that the emergency had been declared in order to "protect the Constitution, the King and the region."