Teenager arrested following death of woman in house
Detectives have launched a murder investigation after a woman died in Lisburn.
The victim was killed at a house in the city, police said.
A 19-year-old man has been arrested.
Detective Inspector John Caldwell from the Police Service of Northern Ireland's serious crime branch said: "Detectives have launched a murder investigation following the death of a woman at a house in the Lisburn area."
Assembly member Pat Catney said local people were in shock.
"This should be a day families spend together, happy and grateful to have each other," said the SDLP Lagan Valley representative.
"Instead a family is waking up on Christmas morning to news of the death of a loved one. I can't begin to imagine the pain they're feeling today.
"My thoughts and prayers are with the woman's family and friends at this extremely difficult time."
Mr Catney added: "I would urge anyone with information, however small, about what happened here to bring it forward as soon as possible."