ULAN BATOR, June 12 (Xinhua) -- Mongolia's archaeologists announced Tuesday that they have excavated about 270 items in the northern province of Bulgan dating back to the 6th and 7th centuries.

A team of five Mongolian archaeologists conducted the excavation from May 1-10. They discovered ancient walls, burial mounds, tombs and rock paintings at the site, which is near a burial mound unearthed in a joint expedition with Kazakh archeologists in 2011.

The team also unearthed a broken stone statue of a person as well as a statue with Chinese inscriptions.

"Mongolia is an open-air museum of ancient nomadic culture," A. Ochir, a senior archaeologist with the UNESCO-sponsored International Institute for the Study of Nomadic Civilizations, said.

"We hope that these discoveries will attract more tourists to Mongolia," he added.