Arriving for talks to end Cambodia's post-election turmoil, opposition leader Prince Norodom Ranariddh called on strongman Hun Sen to be flexible so the country could achieve "real national reconciliation."

Cambodia's three top political leaders were meeting Tuesday to pave the way for the formation of a new government. King Norodom Sihanouk is chairing the talks.The leaders will try to ease tensions that erupted into violence when police suppressed protests against Hun Sen's victory in July parliamentary elections. The opposition claims the ruling party used fraud and intimidation to win the polls.

Ranariddh, leader of the opposition FUNCINPEC party, told journalists at the airport in this northwestern town that Hun Sen and his ruling Cambodian People's Party need to be flexible.

"The CPP, like FUNCINPEC, has to positively respond to the will of the people of Cambodia in moving forward," he said.

Because Hun Sen fell short of attaining the two-thirds majority needed to form a government on his own, he needs the opposition's cooperation.

Ranariddh and opposition ally Sam Rainsy organized street rallies in the capital of Phnom Penh and threatened to boycott parliament's opening unless their allegations of fraud were investigated.

After violent clashes between police and demonstrators in the capital, the three leaders last week agreed to attend the opening session of parliament this Thursday.