A firefighter checks the crude oil spills at the exit of the urban sewage pipeline network after a crude oil spill from a pipeline of PetroChina, the country's largest oil and gas producer, caused a huge fire in Dalian, a coastal city in northeast China's Liaoning Province, July 1, 2014. The oil pipeline near Dalian University in Jinzhou New District was damaged and oil leaked due to the drilling operation of a local construction engineering company on Monday evening. The spill flew into the urban sewage pipeline network and fire broke out at the exit of the urban pipelines. Residents nearby were evacuated and no casualties were reported. (Xinhua)
DALIAN, July 1 (Xinhua) -- Five people are in police custody following a crude oil spill from a pipeline of PetroChina, the country's largest oil and gas producer, in northeast China's coastal city of Dalian, local authorities said on Tuesday.
The five are from Yuelin Construction Engineering Company of Dalian.
A drilling operation damaged an oil pipeline near Dalian University in Jinzhou New District and caused a leak at 6:58 p.m. on Monday. It also caused a big fire.
The spill entered the urban sewage pipeline network, but did not contaminate drinking water, the city's emergency response office spokesman said.
The environmental protection department found that volatile organic compound (VOC) in the city's air was 0.79 times the standard, while other air quality indexes were normal.
Workers are cleaning up and recycling the leaked oil. A further investigation is under way.