Homes evacuated after anhydrous ammonia tanks leak in southern Minn.

Some homes were evacuated and a freeway shut down after large anhydrous ammonia tanks began leaking in southern Minnesota.

Mower County Sheriff Terese Amazi says two 1,000-gallon tanks leaked at a grain elevator on the south edge of Elkton around 4 p.m. Monday.

Amazi says some homes were evacuated, and traffic was rerouted on Interstate 90.

Farmers use anhydrous ammonia — a potentially dangerous chemical — for fertilizer. The sheriff says the tanks were shut off as of 6:25 p.m., but a cloud of vapor remained.

No one has been hurt. Authorities don't know what caused the apparent malfunction.

Create a More Connected Minnesota

MPR News is your trusted resource for the news you need. With your support, MPR News brings accessible, courageous journalism and authentic conversation to everyone - free of paywalls and barriers. Your gift makes a difference.