JALALABAD, Kyrgyzstan - Kyrgyzstan's interim rulers ran into fresh hostility in the restive south on Sunday after supporters of the country's deposed president laid siege to regional government headquarters.

Kurmanbek Bakiyev, toppled in a violent popular revolt on April 7, went into exile last week after days of turmoil that threatened civil war and disrupted military flights from a crucial US air base that supports operations in nearby Afghanistan.

The new government, which has yet to be formally recognized globally, says it controls the entire nation, but the situation appeared fluid in the south, Bakiyev's tribal stronghold.