A vote was taken in the National Assembly on 18 March under the direction of In Tam, in which Sihanouk was stripped of his power: Lon Nol assumed the powers of the Head of State on an emergency basis. On 28 and 29 March there were large-scale popular demonstrations in favour of Sihanouk in several provincial cities, but Lon Nol's forces suppressed them with great brutality, causing several hundred deaths. Lon Nol's brother Lon Nil was among a number of government officials who were murdered by demonstrators.