A pirate radio station operating from a tower in a residential area south of Stuart was shut down by Martin sheriff's investigators and the Federal Communications Commission Wednesday morning.

One person was reportedly arrested, according to investigators on the scene.

The tower belongs to a local plumbing company and was used primarily for radio communications between workers, but an FM antennae and computer equipment were installed at some point and were interfering with a low power radio station set up by a church in Palm City.

A renter at the property said he knew nothing about the radio equipment, but said a man frequently came and did work at the tower late at night.

The FCC assigns radio frequencies and they may not be used by anyone who does not have a license to operate at that frequency.