At 00:21 we were called to reports of a fire on the second floor of a commercial building on Upperton Road, Eastbourne. Crews from Eastbourne, Pevensey, Seaford, Herstmoncuex, Healthfield, Bexhill and Hailsham attended the incident along with three officers.
On arrival crews used forceable entry tools to gain access. In total, 12 breathing apparatus wearers entered the building using two hose reel jets and two thermal imaging cameras to locate and fight the fire.
Crews later used a fan to ventilate the property, leaving the scene at 03:14.
The cause of the fire is deemed to be accidental.
Police and Ambulance were also in attendance.
There were no reports of casualties.