A man in his 40s has been shot dead in Ballymoney.
The attack happened at around 22.30 on Monday evening outside a house at Riverview Park in the town.
A woman who was inside the house at the time was assaulted.
She was taken to hospital but her injuries are not thought to be life-threatening.
Justice Minister David Ford said: "Whoever carried out this terrible murder in Ballymoney must be condemned without reservation.
"There is no excuse for violence, nor any cause to justify it.
"It is time those responsible realised that and accepted the will of the people that Northern Ireland should move forward in peace.
"I offer my deepest sympathies to the family at this time."
DUP MLA Mervyn Storey said: "This is not the news people in Ballymoney wanted to be wakening up to this morning.
"I understand two or three men entered a property and as a result a man has lost his life and a lady is now in hospital.
"Whatever the motive, there can be no justification for this type of activity."
He added: "It has left a family devastated and a community in shock.
"Ballymoney is a very quiet residential town and this is not the way we wanted to start 2015.
"This is something which is very sad."
Police have asked for any witnesses or anyone with information to contact them.