A passenger commuter train, left, passes one of two mile-long oil trains parked adjacent to the King County Airport in Seattle on July 27, 2015. All of the spills so far of highly volatile Bakken crude oil being carried by train from North Dakota to refineries on the coasts of the U.S. have happened in rural places. But those trains pass through major cities including Chicago, Philadelphia and Seattle, creating conditions for a deadly disasters if something goes wrong. (AP Photo/Elaine Thompson)

RICHMOND, Va. (AP) — Two environmental groups say they plan to sue over a Yorktown terminal that accepts trains carrying volatile crude oil from North Dakota’s Bakken shale region.

Media outlets report that the Center for Biological Diversity and the Sierra Club’s Virginia chapter said Thursday they have given a 60-day notice of their plans to sue the U.S. Army Corps of Engineers over the terminal’s permit.

The Richmond-based groups say the corps did not properly consider the terminal’s potential risks to endangered species.

The Yorktown terminal is owned and operated by Plains Marketing, a division of Houston-based Plains All American Pipeline LP.

Two Yorktown-bound trains have derailed and exploded in recent years. One occurred along the James River in Lynchburg in April 2014. The other was in February in Mount Carbon, West Virginia.