Originally Posted by kmbctv/youtube

The Missouri Highway Patrol is investigating a possible marijuana-growing operation at a home in Blue Springs.

Authorities told KMBC's Kris Ketz that it was a "sophisticated" growing operation in the basement of a house on Southwest Walnut Street at Southwest 22nd Street.

Investigators said they seized 75 marijuana plants with a street value of $40,000 to $50,000.

Troopers said a couple in their 50s was home when they served a search warrant before 8 a.m. The couple, who has lived in the home for 37 years, was taking care of their 2-year-old grandson at the time.

No arrests were made.

Troopers said lab tests will be conducted before charges are filed.