A man's been arrested on suspicion of murdering Luna McKinney who drowned in County Fermanagh in April.
The 35-year-old - who was living in Convoy Co. Donegal - fell from a boat on Lough Erne.
The suspect - who's 41 - was held in Derry earlier.
Detectives say they've made the arrest after reviewing the circumstances of Luna's death.
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Anyone with information is asked to contact Gardai or the PSNI.
