Police have launched a murder investigation after two people died following a disturbance in the early hours, police said.
A woman died at the scene and a man died in hospital after allegedly being assaulted in Boston, Lincolnshire. A third victim was injured in the attack.
Lincolnshire Police said officers were called Red Lion Street, Boston, at 5.07am.
A 26-year-old local woman died at the scene a short time later. A 26-year-old local man was taken to Boston Pilgrim Hospital for treatment, but also died a short time later.
The third victim, a 24-year-old local woman, is being treated for less serious injuries at Boston Pilgrim Hospital, a police spokesman said.
A 41-year-old local man was arrested in connection with the deaths.
Investigating officers will be carrying out house-to-house inquiries in the area over the next couple of days.
Police are appealing for anyone with any information on this incident to get in touch with them via the non emergency 101 number as soon as possible.