Dakota Access pipeline and a feeder line leaked more than 100 gallons in March

There were two leaks - one because of a leaky part, the other after an above-ground valve failed - as crews prepared disputed $3.8bn pipeline for operation

The Dakota Access pipeline and a feeder line leaked more than 100 gallons of oil in North Dakota in separate incidents in March as crews prepared the disputed $3.8bn pipeline for operation.

Related: Dakota Access pipeline has first leak before it's fully operational