The cause of the rupture and the total volume of oil released after the North Dakota spill remain unclear, officials said.

He compared Keystone to the Dakota Access oil pipeline ... Quality and the Ransom County sheriff about the spill and response. Today in History: April 28, Abu Ghraib torture images made public ...

Keystone Oil Pipeline ... shut down the pipeline within about two minutes, said Bill Suess, spill investigation program manager with the North Dakota Department of Environmental Quality.

In an update Wednesday, South Bow said it has multiple on-site vacuum trucks beginning to recover the oil. Continuous air quality monitoring is underway. The pipeline’s affected segment is ...