ATC-watcher is right, a tragic but avoidable accident which should not have had happend. The spanish charter aircraft are modern aircraft equiped with EGPWS. Yes they are more expensive than a YAK 42, which has a bad safety record, not so long ago a same aircraft slammed into the Olympus while set for approach at Thessaloniki. It is a pitty that lives of people are lost, the very people who really care about others doing their difficult UN tasks. The should be safegarded more from their superiors who like to be penny wise but pound foulish!.
What a waste,QTA!