挺以派和挺巴派最大的不同点

The United Nations' most senior human rights official said last night that the Israeli military may have committed war crimes in Gaza. The warning came as Israeli troops pressed on with the deadly offensive in defiance of a UN security council resolution calling for a ceasefire.

Navi Pillay, the UN high commissioner for human rights, has called for "credible, independent and transparent" investigations into possible violations of humanitarian law, and singled out an incident this week in Zeitoun, south-east of Gaza City, where up to 30 Palestinians in one house were killed by Israeli shelling.

Pillay, a former international criminal court judge from South Africa, told the BBC the incident "appears to have all the elements of war crimes".

The accusation came as Israel kept up its two-week-old air and ground offensive in Gaza and dismissed as "unworkable" the UN security council resolution which had called for "an immediate, durable and fully respected ceasefire".

Protests against the offensive were held across the world yesterday just as diplomacy to halt the conflict appeared to falter.

With the Palestinian casualty toll rising to around 800 dead, including 265 children, and more than 3,000 injured, fresh evidence emerged yesterday of the killings in Zeitoun. It was "one of the gravest incidents" since Israel's offensive began two weeks ago, the UN office for the co-ordination of humanitarian affairs said yesterday.

"There is an international obligation on the part of soldiers in their position to protect civilians, not to kill civilians indiscriminately in the first place, and when they do, to make sure that they help the wounded," Pillay told Reuters. "In this particular case these children were helpless and the soldiers were close by," she added.

An Israeli military spokeswoman, Avital Leibovich, said the incident was still being examined. "We don't warn people to go to other buildings, this is not something we do," she said. "We don't know this case, we don't know that we attacked it."