Update (01:07)- We now have eight engines in attendance at the fire on Lewes Road,Blackboys.
Crews from Mayfield, Hailsham, Crowborough, Brighton & support from West Sussex Fire & Rescue are also in attendance together with Uckfield, Heathfield and Barcombe.
Firefighters are using four Breathing Apparatus, one main jet, one hose reel & 1 in 7 foam to extinguish the fire.