If you and your pooch enjoy visiting lakes, you'll want to know about this.  Officials are warning dog owners to beware of a dangerous algae showing up in Minnesota waters.

The Minnesota Pollution Control Agency reports a dog died last weekend after swimming in a Sherburne County lake that had developed areas of heavy algae growth.  Another dog died after fetching a tennis ball in Prairie Lake, north of Becker.  The blue-green algae can look like a splash of paint in the water.

As a general rule:  when in doubt, stay out.

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