Crews are cleaning up after another train derailment east of Slave Lake.
Four engines and 21 cars went off the tracks around 4:15 p.m. Tuesday, three of which were carrying dangerous chemicals.
CN is investigating, but says none of the cars are leaking and no one was injured.
The incident comes just four months after a derailment near downtown Slave Lake.
Photo courtesy: Slave Lake Fire Chief Jamie Coutts on Twitter