Mongolia ? The capital of Mongolia remained under a state of emergency Wednesday after five people were killed in post-election violence amid allegations of voter fraud.

The crisis erupted late Tuesday when several thousand protesters associated with the opposition Democratic Party clashed with police in Ulan Bator and set fire to the ruling Mongolian People’s Revolutionary Party headquarters, according to news reports and witnesses.

Preliminary results from the weekend election suggested the ruling party won 46 of the parliament’s 76 seats and the opposition garnered 27, with three still undecided. The results have not yet been certified. Parliamentary elections have been held every four years since the country became a democracy in 1992.

Late Tuesday, President Nambaryn Enkhbayar declared a four-day state of emergency, with protests banned and security forces authorized to use tear gas and rubber bullets against demonstrators.