Police were called to a property at Outgate, Ambleside last night at 10:00 pm, after receiving reports that a woman had been assaulted in the property.
An investigation was launched and a man aged 48 from the Ambleside area was arrested nearby on suspicion of murder and remains in police custody.
Police are working to formally identify the woman.
More top news
Kerrie brings you Monday's pollen forecast
Kerrie brings you Monday's forecast
The aircraft crashed on the way to Carlisle airport, and after an extensive search by the emergency services, their bodies were recovered.