▁by ▁Ham as , ▁with ▁the ▁aid ▁of ▁special ▁units ▁formed ▁to ▁expand ▁the ▁protest s . ▁Four ▁Palest ini ans ▁were ▁shot ▁dead ▁after ▁they ▁crossed ▁into ▁Isra eli ▁territory ▁and ▁approached ▁a ▁sni per ' s ▁post . ▁ ▁Cas ual ties ▁▁▁ ▁One ▁Isra eli ▁soldier ▁has ▁been ▁injured ▁due ▁to ▁sh rap nel ▁from ▁a ▁gr en ade ▁thrown ▁by ▁a ▁Palest in ian ▁from ▁inside ▁Gaz a ▁and ▁one ▁Isra eli ▁soldier ▁has ▁been ▁killed ▁by ▁Palest in ian ▁sni per ▁fire ▁near ▁the ▁f ence . ▁ ▁The ▁head ▁of ▁W HO ' s ▁office ▁in ▁Gaz a , ▁Ger ald ▁Rock ensch a ub , ▁described ▁the ▁cas ual ties ▁as ▁over wh el ming ▁an ▁already ▁weak ▁health ▁care ▁system : ▁" the ▁d eter ior ating ▁human itar ian ▁situation ▁is ▁extremely ▁worry ing . ▁H osp it als ▁in ▁Gaz a ▁are ▁over wh el med ▁with ▁the ▁infl ux ▁of ▁injured ▁patients . ▁With ▁further ▁es cal ations ▁expected ▁during ▁the ▁coming ▁weeks , ▁the ▁increasing ▁numbers ▁of ▁injured ▁patients ▁requiring ▁ur gent ▁medical ▁care ▁is ▁likely ▁to ▁dev ast ate ▁Gaz a ' s ▁already ▁weak ened ▁health ▁system , ▁placing ▁even ▁more ▁lives ▁at ▁risk ." ▁According ▁to ▁the ▁Ministry ▁of ▁Health ▁in ▁Gaz a , ▁ 6 9 ▁amb ul ances ▁were ▁partly ▁dam aged . ▁ ▁Do ctors ▁Without ▁B orders ▁released ▁a ▁statement ▁on ▁ 1 4 ▁May ▁ 2 0 1 8 ▁calling ▁the ▁Isra eli