Foreign intervention?

Bakiyev also pointed out some "foreign forces" behind Kyrgyz politics in an interview with the Russian radio station Echo Moskvy on Thursday.

It's impossible to launch such a coordinated action without intervention of outside forces, said Bakiyev.

"I am an elected president and do not concede defeat," he added.

The president said if the situation in the country continued to deteriorate opposition leaders must be responsible, according to the emailed statement by Bakiyev.

The political turmoil has meanwhile largely aggravated social security of the Central Asian country.

Most government buildings in the capital, as well as Bakiyev's houses, were looted or set on fire and two major markets were burned down. Even oil paintings by Soviet and Russian artists exhibited at the state visual arts museum of Kyrgyzstan were snatched away.

Turat Madalbekov, military commandant of Bishkek, told reporters that the area hosting embassies of foreign countries in the capital was also attacked by hundreds of people on Thursday.

The area had hosted the offices of several international delegations, as well as the residence of former Prime Minister Daniyar Usenov, said Madalbekov.

Xinhua reporters at the scene saw that some people had begun to loot.

Otunbayeva has urged opposition supporters to stop violent acts and attacks on civilians.

Another opposition leader, former defense minister Ismail Isakov, said law enforcement agencies would set up patrolling groups around Bishkek to help stabilize the security situation of the city.