Firefighters today responded to an alarm at the Belco power plant.Fire crews reported finding smoke in a switching room at the plant on Pembroke’s Serpentine Road, but no fire.It was discovered that a faulty pull station had activated and extinguisher was released into the room, which activated an alarm.The incident happened about 10.20am.A spokesman for the fire service said that power had been restored to the area.A Belco spokesman added: “There was no smoke or fire present at any time.“As a precaution, the power to the switch board was immediately transferred to an alternative switch board.“As a fire alarm had been triggered, the Bermuda Fire and Rescue Service were automatically notified and attended the site of the alarm.”He said: “There was never any threat to personnel or to power supply.“The incident remains under investigation and operations continue as normal.”