Humanitarian groups and several governments are stepping up efforts by air, land and sea to ease the suffering in aid-starved Gaza. A ship carrying 200 tons of food departed Cyprus for Gaza on Tuesday, the same day a U.S. military aircraft dropped 5,280 pounds of food into northern Gaza and Israel allowed a World Food Program convoy to deliver food for 25,000 people in Gaza City. Aid groups say the spiraling humanitarian disaster is particularly bad in the north, where some 300,000 people live on the brink of famine.