The body of a 21-year-old man has been found by police overnight in Skellingthorpe.
Officers discovered the body at a home on Waterloo Lane at 1.25am this morning.
The death is being treated as unexplained.
Three people have been arrested: a 54-year-old woman, a 27-year-old man and a 48-year-old man.
All were found inside the property when police arrived in the early hours of the morning.
A police cordon remains in place.
Police officers are carrying out door-to-door enquires on the street.