▁process ▁aim ing ▁at ▁creating ▁the ▁conditions ▁for ▁a ▁return ▁to ▁meaning ful ▁negoti ations ." ▁Spe aking ▁to ▁the ▁UN ▁Security ▁Council ▁in ▁a ▁meeting ▁on ▁the ▁situation ▁in ▁the ▁Middle ▁East , ▁Nick ol ay ▁M lad en ov , ▁UN ▁Special ▁Co ordin ator ▁for ▁the ▁Middle ▁East ▁Peace , ▁said ▁that ▁Gaz a ▁was ▁about ▁to ▁" expl ode " ▁and ▁called ▁for ▁" actions ▁to ▁prevent ▁another ▁war ." ▁Ze id ▁Ra ' ad ▁al - H us sein , ▁UN ▁High ▁Commission er ▁for ▁Human ▁Rights ▁condem ned ▁use ▁of ▁" ex cess ive ▁force " ▁by ▁Isra eli ▁and ▁said ▁that ▁security ▁forces ▁had ▁to ▁be ▁" h eld ▁to ▁account ." ▁ ▁Elizabeth ▁Th ross ell , ▁a ▁sp ok esp erson ▁for ▁the ▁United ▁Nations ▁High ▁Commission er ▁for ▁Human ▁Rights , ▁said ▁that ▁the ▁use ▁of ▁dead ly ▁force ▁was ▁largely ▁un just ified , ▁since ▁such ▁force ▁may ▁only ▁be ▁used ▁as ▁a ▁last ▁resort ▁when ▁there ▁is ▁an ▁im min ent ▁threat ▁of ▁death ▁or ▁serious ▁injury . ▁" An ▁attempt ▁to ▁approach ▁or ▁cross ▁the ▁green - line ▁f ence ▁by ▁itself ▁certainly ▁does ▁not ▁amount ▁to ▁a ▁threat ▁to ▁life ▁or ▁serious ▁injury ▁that ▁would ▁justify ▁the ▁use ▁of ▁live ▁am mun ition ," ▁the ▁office ▁said . ▁The ▁United ▁Nations ▁Special ▁R app orte ur ▁for ▁the ▁Palest in ian ▁territ ories ▁echo ed ▁the ▁argument ▁and ▁stated : ▁" The ▁killing ▁of ▁demonstr ators ▁in ▁viol ation