(SLINGER, Wis.) -- A pair of freight trains collided in southeastern Wisconsin on Sunday night, causing a derailment and a fuel spill.
Rick Hanke, Fire Chief from the Slinger Fire Department said at an early morning new conference that 13 train cars derailed, including three engines. The trains, operated by Canadian National Railway and Wisconsin & Southern Railroad, were carrying sand, lumber and other materials.
Two people were injured, Hanke said, though their injuries were not believed to be life-threatening. Additionally, more than 100 homes were evacuated in the wake of the 4,000 gallons of spilled diesel fuel.
The evacuated residents were allowed to return to their homes later Monday morning. Washington County Hazmat was on the scene and began the cleanup phase of the response on Monday.
Hanke said that officials were not sure what caused the accident, though an investigation is underway.
Copyright 2014 ABC News Radio