SAN DIEGO » Authorities say an exploding refrigerator led them to a marijuana-growing operation in San Diego.

City News Service says the fridge exploded and caused a fire Thursday afternoon at a home in the Encanto neighborhood.

It took firefighters about 30 minutes to douse the fire and there were no injuries.

However, police say authorities later discovered marijuana growing at the house and a quantity of flammable hash oil, which apparently caused the explosion.

Three people were held for questioning.