The Council of Europe has said Gaza was suffering from a "deliberate starvation".
"The time for a moral reckoning over the treatment of Palestinians has come – and it is long overdue," said Dora Bakoyannis, rapporteur for the Middle East at the Parliamentary Assembly of the Council of Europe.
Since March 2, Israeli forces have blocked all humanitarian aid from entering Gaza for its 2.4 million inhabitants, now threatened with famine.
"No cause, no matter how just or pure, can ever justify every means," Bakoyannis said in a statement.
"The mass killing of children and unarmed civilians, the deliberate starvation, and the relentless pain and humiliation inflicted upon Palestinians in Gaza must end."