Firefighters have been called to Newport Minster this evening (Friday).
Hampshire and Isle of Wight Fire and Rescue Service has confirmed crews are investigating smoke coming from a chimney.
No fire has been reported as yet, a spokesperson for the service said.
Two appliances from Newport are in attendance.
The incident has been deemed a "false alarm".
The fire service says there was no fire and it was actually excess steam from the central heating system.
Crews are standing down from the incident.