Israel ignored at least six warnings. Democracy NOW! reported yesterday that UN officials made at least ten calls and each time were promised by the Israelis that the bombing would stop. “The bombing continued even as rescuers tried to save the victims.” Thanks to the U.S. the crime will not be investigated.

UN ‘shocked’ at peacekeeper deaths
Friday 28 July 2006, 2:50 Makka Time, 23:50 GMT
The UN security council has passed a statement expressing shock at Israel’s attack on a UN observer post in Lebanon on Tuesday which killed four peacekeepers, but made no condemnation of the action.
The United States had refused to allow any criticism of Israel in the statement.
[…]
Large parts of the original Chinese draft text were taken out in order to get the “presidential statement” passed.
A paragraph which said “the Security Council condemns any deliberate attack against UN personnel” was deleted, along with a phrase which would have called on the UN to be involved in any Israeli inquiry.