On a visit to the enclave, he condemned Israelâ€™s January bombardment of Gaza and its continuing trade blockade, which he said forbids even childrenâ€™s toys.
â€œI understand that even paper and crayons are treated as a security hazard,â€ he told Gazans at a local United Nations office. â€œI sought an explanation of this when I met with Israeli officials and I received none, because there is no explanation.â€
Carter, 84, has spent far more years as a human rights activist than he did in the White House from 1977 to 1981. He is easily the most outspoken former U.S. president on the Middle East conflict, and seen by many Israelis as a harsh critic.
He ignored a U.S. government ban on dealings with Gazaâ€™s Islamist rulers Hamas and had talks with its leaders.
Israel tightened a blockade on Gaza in 2007 when Hamas took control after routing rival Fatah forces loyal to President Mahmoud Abbas, who favors a peace deal with Israel. In late December, Israeli forces bombed then invaded Gaza, devastating its already battered infrastructure.
Since then, Israel has blocked imports of steel, cement and other goods to the population of 1.5 million Palestinians, saying Hamas could use many items for military purposes.
Carter, a Democrat, said he had seen for himself there had been almost no reconstruction in Gaza over the past five months.
â€œNever before in history has a large community like this been savaged by bombs and missiles and then been deprived of the means to repair itself,â€ he said.