Israeli strikes on the Gaza Strip have killed at least 23 people, including a family of 10. The United Nations meanwhile raised alarm over the mounting impact of Israel’s six-week-old blockade preventing all food and other supplies from entering the territory. Israel ended its ceasefire with Hamas last month and renewed its bombardment, killing hundreds of people and seizing large parts of the territory to pressure the militants to accept changes to the agreement. The U.N. humanitarian office said that almost all of Gaza’s more than 2 million people now rely for food on the only 1 million prepared meals produced daily by charity kitchens supported by aid groups.