-LRB- The victims included observers from Austria , Canada and Finland , United Nations and Lebanese military officials said , -LRB- Israel 's ambassador to the United Nations , Dan Gillerman , expressed '' deep regret '' for the deaths and denied the post was intentionally targeted , saying he was '' deeply distressed '' by Mr. Annan 's assertion , which he called '' premature and erroneous , '' The A.P . said . -RRB-