East Sussex Fire and Rescue Service (ESFRS) said via its Twitter account that crews were called to the scene in Lewes Road just after 7.25pm.
Four fire engines from Newhaven, Roedean and Seaford fire stations attended, along with a command unit. Two breathing apparatus and one hose reel jet were used to tackle the blaze, ESFRS said.
Residents were advised to avoid the area as firefighters put out the fire.
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Crews at the scene of the fire. Picture by Sussex News and Pictures Photo: Sussex News and Pictures
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Crews at the scene of the fire. Picture by Sussex News and Pictures Photo: Sussex News and Pictures
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The scene of the fire. Picture from Sussex News and Pictures Photo: Sussex News and Pictures
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Crews at the scene of the fire. Picture by Sussex News and Pictures Photo: Sussex News and Pictures