20 dead as Israeli forces roll back into Gaza

• ICRC says medics struggling to cope with spike in casualties
• UNOPS staffer killed in ‘Israeli strike’
• Health ministry records nearly 1,000 deaths over 48 hours
• World leaders flay resumption of hostilities

GAZA: Long lines of fleeing civilians filled the roads on Wednesday after the Israeli military announced its forces had resumed ground operations in the central and southern Gaza Strip.

A second day of airstrikes claimed the lives of at least 20 Palestinians...