MARSHALL TOWNSHIP, Mich. (AP) -- A pipeline company says 840,000 gallons of oil has leaked into a creek that feeds into the Kalamazoo River in southwestern Michigan.

The oil leaked Monday from a 30-inch pipeline that carries about 8 million gallons of oil per day from Griffith, Ind., to Sarnia, Ontario.

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The Battle Creek Enquirer says the leak estimate comes from Chicago-based Enbridge Liquids Pipelines Company General Manager Tom Fridel says the cause remains under investigation.

The oil spilled into Talmadge Creek, which flows northwest into the Kalamazoo River. The site is in Calhoun County's Marshall Township, about 60 miles southeast of Grand Rapids.

Authorities have evacuated two homes near the leak.

Information from: Battle Creek Enquirer,