According to new information leaked by western intelligence sources, a special ground forces unit reached the Syrian reactor from Iraq. In the weeks that preceded the bombing of the site, the force stayed in Iraqi territory with the knowledge of the U.S. military, and with its assistance. The details are reported by www.sigint.co.il, which does not name the unit because of censorship but says it is "an operational unit which works alongside a well-known intelligence organization."
The unit reportedly stayed near the Iraqi-Syrian border during August and September of 2007, documented the site's construction and "marked" it before its destruction. It was not clear from the report whether this "marking" refers to laser-marking of targets for fighter-bombers, or to something else.
The unit reportedly received assistance from "local elements" who are hostile to the Syrian regime. The report notes that Kurdish fighters maintain a permanent presence in the area and have been known to assist western intelligence operations.