Protest and oil sheen on Columbia river follow Oregon train derailment

• Townspeople rally to demand halt to shipping of volatile oil by rail
• Booms deployed on river to contain spill from unknown source

Environmental crews worked on Saturday to contain a sheen of oil that appeared in the Columbia river along the Washington-Oregon border after a Union Pacific train derailed and caught fire. Officials said there was no immediate indication of harm to wildlife.

Related: Train carrying oil derails near Oregon's Columbia river gorge