BRUSSELS, May 25 (AFP) - NATO commander Wesley Clark has cited an erroneous map as the reason for the May 7 accidental bombing of the Chinese embassy in Belgrade in a detailed report presented to Secretary-General Javier Solana, a NATO official said Tuesday. The report which was submitted over the weekend, said the map had been poorly updated and that some sites had been mistakenly added in, said the official, who asked not to be named. "I have trouble believing this version," a high-ranking European official, who also asked to remain anonymous, told AFP, before evoking different theories as to why the embassy was hit by three US missiles. Among them was the possible use of the embassy as a transmission center by the Yugoslav army, the official said, before adding that intelligence gathered by US forces is not always shared with its allies. The pro-government Yugoslav newspaper Politika Ekspres charged that such an error by NATO staff was impossible. "The embassy was built in 1992-93 and occupied immediately. Before that there was only an empty lot there and an old map would show nothing on the site," the newspaper said, following official US reaction to the strike. Three days after the bombing, Washington explained that an out-dated map lacking the embassy's new location had caused it to be targetted in error. NATO said it believed the building housed Yugoslavia's weapons procurement program, the headquarters of which is actually a few hundred yards away. In his report, Clark exonerated the pilot who flew the mission from any responsibility for the error. Clark also spelled out measures put into effect on May 8 to ensure the error would not be repeated, the NATO official said. Three people were killed and 20 were injured in the bombing, sparking a crisis in already-strained relations between the United States and China.  