柬埔寨反对党声称赢得星期天的议会选举

Cambodia's opposition is claiming victory in Sunday's parliamentary election, stepping up its rejection of the results of a vote it says was marred by fraud.

The Cambodia National Rescue Party ((CNRP)) said Wednesday its own polling data shows it won at least 63 parliamentary seats, compared to just 60 seats for the ruling Cambodian People's Party ((CPP)).

The government's preliminary figures released Sunday showed the CCP winning 68 seats - a significantly reduced majority from last election - but enough to return longtime Prime Minister Hun Sen to power.

The CNRP, led by opposition leader Sam Rainsy, gathered Wednesday to collect evidence of alleged irregularities, as accusations of fraud continue to pour in from international observers.

Rainsy says he hopes the evidence can bolster the party's call for a United Nations-backed investigation into what he says is widespread electoral fraud.