UN Secretary-General António Guterres is concerned about Gaza.
He wants Israel to end the restrictions. The restrictions prevent aid organizations from working.
Israel does not allow 37 aid organizations into Gaza. These organizations do not provide lists to Israel.
The restrictions also prevent Doctors Without Borders from working. Doctors Without Borders has many people working in Gaza.
Aid organizations say the restrictions are wrong. They want to help the people of Gaza.
Israel says the restrictions stop terrorism.
Gaza's buildings are destroyed. The people of Gaza live in very poor conditions.
Palestinian official Amjad Al-Shawa says many Gazans are homeless. There are over 2 million people in Gaza.