The PSNI in Derry are investigating an attack on a woman in the Gobnascale area of the Waterside on Tuesday morning, December 8.
A number of masked men were involved in the incident and the woman received serious injuries during the attack. She was taken to Altnagelvin Hospital where she currently remains.
Chief Inspector Ivor Morton said a motive remained under investigation and appealed for information.
“We would like to hear from anyone who saw men going to or coming from the house between 9.30am and 10.30am,” he said.
The number to call is 101, or Crimestoppers on 0800 555 111.