Sticking points of U.N. Jenin probe

(CNN) -- The United Nations abandoned plans Wednesday to send a fact-finding mission to investigate the fighting in the Jenin refugee camp during Israel's military offensive in the West Bank. The decision came one day after the Israeli Cabinet refused to cooperate with the probe, citing several concerns.

The sticking points include:

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Palestinians contend Israel carried out a massacre at the Jenin camp, killing some 500 people. Those allegations have not been independently corroborated. Israel says "dozens, not hundreds" were killed in intense fighting as its forces attempted to clear out what it called "the fountainhead of suicide bombers."

The Palestine Red Crescent Society said Wednesday that 53 bodies had been recovered from the wreckage of the camp and buried. Israel has said 23 of its soldiers were killed at the camp.

Figures compiled by aid agencies show 140 of the camp's 1,896 homes were destroyed and another 200 damaged. One-quarter of the camp's population of 13,000 was made homeless, the agencies said.