Published: Mar 03, 2011 9:44 PM EST
Updated: Mar 03, 2011 6:44 PM EST

MADISON, Wis.- Police say they have found live ammunition scattered on the ground around the Wisconsin Capitol, where union-rights protests are in a third week.

University of Wisconsin Police Chief Susan Riseling says 41 rounds of .22-caliber ammunition were found Thursday morning at several locations outside the Capitol. The revelation comes as state attorneys ask a judge to order the Capitol closed for a security sweep. The judge made no immediate ruling.

Protesters are rallying against Gov. Scott Walker's proposal to repeal nearly all collective bargaining rights for most public employee unions. State officials said about 100 protesters remain in the building, which has had limited access since Sunday.

Union attorney Peggy Lautenschlager suggested in court that the ammunition could have been planted by someone other than a protester. (Copyright 2011 by The Associated Press. All Rights Reserved.)