Emergency services were called to Sandylands caravan park in Saltcoats, North Ayrshire, late last night.
A 41-year-old man was pronounced dead at the scene.
A man has now been arrested in connection with the death on Thursday.
Police Scotland said that a 28-year-old man has been arrested in connection with the death.
He is expected to appear at Kilmarnock Sheriff Court on Monday.
A report will be submitted to the Procurator Fiscal.