|Indigenous demonstrators raise their arms during protest|
Officials say the trouble erupted Thursday before a scheduled meeting of lawmakers who were to consider President Carlos Mesa's resignation. Troops set up a security cordon at the building where the meeting was to take place.
President Mesa submitted his resignation Monday, saying he could no longer lead the impoverished Andean nation in the face of continuing protests. He tried to resign earlier this year, but lawmakers rejected his offer.
Senate head Hormando Vaca Diez would be next in line to replace Mr. Mesa. But the president has asked him not to accept the post and called for new elections instead.
Some information for this report provided by AP and Reuters