Hohhot: A cluster of 99 ancient tombs dating back to more than 2,000 years have been found in Mongolia, according to authorities. An archaeological team discovered a complex of tombs in Jungar Banner area and a sacrificial pit dating between the late Warring States Period (475-221 B.C.) and the early Western Han Dynasty (202 B.C.-8 A.D.), Xinhua news agency reported on Sunday. Most of the tomb owners were found without coffins in tombs, animal offerings, including skeletons of goats, cattle and dogs, besides cooking utensils, as well as 10 bronze government seals from the Western Han Dynasty. (IANS)