Over 13,000 children have been killed in Gaza in Israels offensive, from severe malnutrition, The UN childrens agency said on Sunday. The agency revealed that they did not even have the energy to cry.UNICEF Executive Director Catherine Russell said, Thousands of people have been injured or we cant even determine where they are. They may be trapped under the debris. We have more deaths of children than we have in almost any other conflict in the world. Huge Bureaucratic challengesRussell said there were huge bureaucratic challenges in getting trucks into Gaza to transport aid and assistance. A UN expert said earlier this month that Israel was destroying Gazas food system. Israel rejected these allegations.According to Gazas health ministry, Israels military offensive on Hamas-ruled Gaza has displaced a population of about 2.3 million people, leading to a famine. Most areas have been destroyed and more than 31,000 people have died. Due to this, allegations of genocide are also being investigated in the World Court.Israel has denied accusations of genocide and said it was acting in self-defense after the Hamas attack on Israel on October 7, which killed about 1,200 people and took several hostages, according to Israeli data. . The main UN agency operating in the Palestinian enclave said on Saturday that one in three children under the age of two in northern Gaza are now severely malnourished and famine is looming.