CAPAC, Mich. (AP) — Canadian National Railway says cleanup is complete after a freight train heading from Chicago to Toronto derailed in southeastern Michigan, resulting in a minor chemical spill.

Company spokesman Frank Binder says the five cars that left the tracks Monday included one carrying ammonium nitrate in a solid form. He says crews quickly contained a "minor leak" in the car.

The accident happened about 12:30 a.m. near Capac, about 45 miles north-northeast of Detroit. No injuries or evacuations were reported.

Binder says the line reopened about 1 p.m.

No cause has been determined. Canadian National and federal authorities planned to investigate.