islamabad pakistan government saturday call military help police break sit-in religious hardliners block main rout islamabad two weeks state television report army call control law situation capital official pakistan tv report cite interior ministry notification pakistani police fight run battle saturday stone-throwing activists ultra-religious tehreek-e-labaik party fail dislodge activist block roads islamabad nightfall new demonstrators join camp protest spread main cities activists brandish stick attack cars areas pakistani government call army help disperse islamist protesters