In January 1970, Sihanouk left Cambodia for a two-month holiday in France, spending his time at a luxury resort in the French Riviera. On 11 March 1970, a large protest took place outside the North Vietnamese and PRGSV embassies, as protesters demanded Viet Cong troops withdraw from Cambodia. The protests turned chaotic, as protesters looted both embassies and set them on fire, alarming Sihanouk. Sihanouk, who was in Paris at the time, considered both returning to quell the protests and visiting Moscow, Beijing, and Hanoi. He opted for the latter, thinking that he could persuade its leaders to recall Viet Cong troops to their jungle sanctuaries, where they had originally established themselves between 1964 and 1969. Five days later, Oum Mannorine, the half-brother of Sihanouk's wife Monique, was summoned to the National Assembly to answer corruption charges. On that night after the hearing, Mannorine ordered troops under his command to arrest Lon Nol and Sirik Matak, but ended up getting arrested by Lon Nol's troops instead. On 18 March 1970 the National Assembly voted to depose Sihanouk, allowing Lon Nol to assume emergency powers.