Cambodia's main opposition leader kicked off a new wave of demonstrations against Prime Minister Hun Sen's government Sunday, warning the protests would not stop until the nation's post-election deadlock is resolved.

The mass rally comes one day after Cambodia's king brought Hun Sen face to face with opposition chief Sam Rainsy for the first time in years, urging the two rivals to resolve their conflict over results from the July ballot peacefully for the sake of national stability. No agreement was reached, but the two are expected to meet again Monday.

Political analysts say the weekend protest is mostly aimed at appeasing angry supporters and strengthening the opposition's hand in negotiations with Hun Sen. Although the rally is aimed at pushing for an independent investigation the election results, the government has no legal means of meeting the request now that the results have been ratified.