Firefighters are continuing to battle a fire at a property in Llanhennock, near Caerleon.
Six fire engines are at the scene.
South Wales Fire and Rescue tweeted that crews have requested specialist lighting units from the Urban Search and Rescue Units to attend the incident.
A 3rd fire engine has just been requested to help fight a fire in a 2 storey property in Llanhennock 2hose reels 4BA 1 jet in use 18:26
Update Llanhennock: A Water bowser and aerial appliance are also now in attendance. Fire involving a building under construction
Update Llanhennock: Crews have requested a 4th fire engine and a 2nd water bowser at the incident
Around 50 firefighters are tackling a blaze in Newport. They were called out to the Pill area just after six this morning.
Officers say the fire's in a two storey disused commercial garage. Nearby buildings are being protected. There are no reports of injuries.
The emergency service received the first call at 06:08 this morning.
4 fire engines 2 water bowsers and an aerial appliance are currently fighting a fire in a commercial garage in Pill Newport 06:08
Update NewportThe first 999 call reported flames through the roof of building+on arrival the 1st fire engine requested a further 2+aerial
Update Pill Newport: 2 storey building well alight water curtain being used by crews to protect surrounding buildings 4 main jets in use
Latest Update Llandow: Firefighting operations continue 1water tower 2ground monitors 1 jet in use (05:34)
Update Llandow:Firefighters have now been actively involved in firefighting operation for 26hrs Fire under control but will burn for days
Our reporter James Crichton-Smith says crews could be at the scene for the rest of the day.