LA PAZ, Bolivia (AP) — Bolivians have new uncertainty to grapple with now that opposition Sen. Jeanine Añez declared herself interim president of the crisis-torn Andean country just hours after Evo Morales flew off to self-exile in Mexico.

Questions remained about who might rally around Añez, while Morales' supporters angrily accused her of trying to seize power in her declaration Tuesday, raising the prospect of more troubles following weeks of clashes over the disputed Oct. 20 presidential election.

Some people took to the streets cheering and waving national flags Tuesday night after Añez claimed the post of Senate leader, the position next in line for the presidency. Furious supporters of Morales responded by trying to force their way to the Congress building in La Paz yelling, "She must quit!"