Dyfed Powys Police are investigating an incident that occurred in a property in Granby Close, Llanelli sometime between 1.15am and 3.30am on the morning of Tuesday April 5.
A 37 year old man sustained serious injury, and was conveyed to Morriston hospital. A 39 year old woman has been arrested on suspicion of wounding, and remains in the custody of police.
Police are appealing to anyone with any information, or who witnessed or heard anything in the area between those relevant times, to contact them by calling 101, or Crimestoppers anonymously on 0800 555111.
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