Authorities say the latest suspected illegal marijuana grow in Pueblo County was discovered after its heavy power use started a grass fire.

The sheriff's office says the grow at a home in Pueblo West, which was raided Wednesday, is to blame for starting a 2-acre fire on April 14. Investigators found that a transformer blew because the home was drawing about five times the normal amount of electricity for an average single-family home. They say the home's garage was set up with a commercial heating and ventilation system along with extensive lighting and irrigation systems.

This is the tenth suspected illegal grow discovered in the county in three weeks.

The sheriff's office says the man living in the home is also suspected of having an illegal grow in Denver.