George Street in Bath has now re-opened following the earlier fire at Moles nightclub.
Fire crews were called to the club just before 9am this morning where smoke was billowing out from the doors.
Avon Fire and Rescue Service have told ITV West Country there is severe damage to the ground floor. No-one was inside at the time.
An investigation is taking place to find out the cause of the fire and what damage has been caused.