U.N. Secretary-General Kofi Annan said he was "deeply distressed" by the "apparently deliberate" strike. "This coordinated artillery and aerial attack on a long-established and clearly marked U.N. post at Khiyam occurred despite personal assurances given to me by Prime Minister Ehud Olmert that U.N. positions would be spared Israeli fire," he said.
An errant bomb I could understand; a "coordinated artillery and aerial attack"? That doesn't sound plausibly accidental. Even in the fog of war.