International law says incendiary weapons can not be used where civilians are concentrated . Researchers in Israel saw bursts of white phosphorus over Gaza , group says . White phosphorus can burn people , set structures on fire . It's not clear if the rockets were fired from inside or outside Gaza[/u] '' Group : Use in densely populated Gaza would violate international humanitarian law .
Researchers in Israel saw bursts of white phosphorus over Gaza , group says . White phosphorus can burn people , set structures on fire . It's not clear if the rockets were fired from inside or outside Gaza[/u] '' Group : Use in densely populated Gaza would violate international humanitarian law .