A group of ancient wells have been found in the city of Changsha, capital of Central China's Hunan province, the city's cultural relics bureau announced Thursday.

The 25 wells along with a tomb were found around the beginning of March at the construction site of the provincial stadium which was being expanded in downtown Changsha. Archaeologists have started research and excavation on those wells since then.

Thirteen wells have been confirmed to belong to the Song Dynasty (960-1279) while another two can date back to the Ming (1368-1644) and Qing (1644-1911) dynasties, according to the bureau. Celadon debris has been found in these wells.

The bureau also said the time of the other 10 ancient wells have not been identified, for no cultural relics have been excavated from them so far.

Archaeologists said the findings can provide useful information for research on the city's development.