BEIJING -- More than 800 villagers have been evacuated after land sank in southern China's Guangxi province, which is known for its karst topography.
The official Xinhua News Agency reported Saturday that the land subsidence occurred near a middle school in Nanning city's Xixiangtang district after the school dug a well to ease a water shortage.
Xinhua says the sink hole is 1.5 meters (5 feet) deep and 2.5 meters (8 feet) wide and has caused one building to collapse, six to tilt and another to crack.
There were no reports of injuries, but 844 villagers were evacuated.
Sinkholes and land cracks have been common in China in recent years, partly because of intense construction and mining activities coupled with insufficient geological regulation.
Workers use excavators to fill in a sinkhole which occured overnight on Shiliuzhuang road, in Beijing on April 26, 2011.(STR/AFP/Getty Images)
An aerial view photo shows sinkholes created by the drying of the Dead Sea, near Kibbutz Ein Gedi, on November 10, 2011. (MENAHEM KAHANA/AFP/Getty Images)
A man inspects a sinkhole inside a house on July 19, 2011 north of Guatemala City. When neighbors heard the loud boom overnight they thought a cooking gas canister had detonated. Instead they found a deep sinkhole the size of a large pot inside a home in a neighborhood just north of Guatemala City. The sinkhole was 12.2 meters (40 feet) deep and 80 centimeters (32 inches) in diameter, an AFP journalist who visited the site reported. (JOHAN ORDONEZ/AFP/Getty Images)
A home sits near a sinkhole, about 100-feet wide and 50-feet deep, Saturday, May 5, 2012, in Windermere, Fla. The family was forced to evacuate the home. (AP Photo/John Raoux)
Chinese workers inspect a sinkhole in a street in Beijing on February 8, 2010. Sinkholes are known geological phenomenon that usually occur predominantly in areas that have been heavily mined or on reclaimed land. (AFP/AFP/Getty Images)
A 22-ton Los Angeles Fire Department fire truck protrudes from a sinkhole on September 8, 2009 in the Valley Village neighborhood of Los Angeles, California. (Photo by David McNew/Getty Images)