BEIJING, Oct. 25 (Xinhua) -- Fire has been put out at the scene of a July 16 blast involving two oil pipelines in Dalian, a port city in northeast China's Liaoning Province, by 2 a.m. Monday, the contingency headquarter said.

The contingency headquarter said no crude oil has been found spilled over into the sea, and no ocean pollution has been detected.

The fire was caused by the remaining oil in a tank which had been emptied before workers tried to remove it at 4:10 p.m.. No casualties have been reported.

The tank, owned by China National Petroleum Corp (CNPC), caught fire on July 16 when two pipelines at Dalian Xingang Harbor exploded.