Dalian Harbour Oil Pipelines Exploded, China

Dalian is the governing sub-provincial city in the eastern Liaoning Province of Northeast China, facing Shandong to the south and the Yellow Sea to the east and the Bohai Sea to the west and south. Dalian is southernmost city of Northeast China and China's northernmost (still warm water) seaport. Dalian is the second largest city of Liaoning Province, and has a long history of being used by foreign powers as a port. The city made international news headlines in July 2010 when two oil pipelines exploded, releasing thousands of gallons of oil which flowed into the nearby harbour and the Yellow Sea.
In the Qin and Han periods (221 B.C.-220 A.D.), the Dalian region was under the jurisdiction of Liaodong county. During the 3rd century through 5th century, when China was split into Sixteen Kingdoms, the neighboring kingdom of Goguryeo maintained control of this region. In the early Tang Dynasty (618-907), the Dalian region was under the jurisdiction of Andong Prefecture in Jili state, and during the Liao Dynasty (916-1125), it was under the jurisdiction of Dong Jing Tong Liaoyang county. Dalian was named Sanshan in the period of Weijin (220-420), San Shanpu in the Tang Dynasty (618-907), Sanshan Seaport in the Ming Dynasty (1368-1644), and Qing Niwakou in the Qing Dynasty (1644-1911).