The United Nations' aid chief welcomed Israel's announcement Sunday of secure land routes into Gaza for humanitarian convoys, and said the UN would try to reach as many starving people as possible.

A suspension in military activity between 10 a.m. to 8 p.m. was scheduled for Al Mawasi, Deir al Balah and Gaza City, according to Avichay Adraee, an IDF spokesperson.

The U.N. says it’s unable to bring in enough aid to Gaza as it is hindered by Israeli restrictions and a breakdown of security.