An investigation is underway into last night's fire in Enniscorthy, Co Wexford, which forced 70 people from a complex of apartments.
The fire at Railway Square, Viking Warf, broke out shortly after 9pm.
No one was hurt or hospitalised but all four apartment blocks in the complex were extensively damaged.
Enniscorthy fire brigade were called to the scene at 9.10pm and remained there until 4 this morning.
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They had the fire under control by 12 midnight but it re-ignited and spread from block to block. Many of the apartments are today smoke and water damaged. Eight of the top-floor apartments are structurally damaged.
Fire brigade personnel and the gardaí are today examining the scene.