Authorities in Myanmar have threatened to take “action” against protesters who break the law as police fired water cannon at peaceful demonstrators in Naypyidaw and thousands of people took to the streets of major cities for a third day to denounce last week’s putsch. A statement read by an announcer on state-run MRTV on Monday said there had been violations of the law and threats of force by groups “using the excuse of democracy and human rights”. “Action must be taken according to the law with effective steps against offences which disturb, prevent and destroy the state’s stability, public safety and the rule of law,” the statement said.