Police are looking to find Xiaolin Wang, 39, as she is wanted in connection with the cultivation of cannabis after a set up worth around £400k was found in Preston.
Earlier this week, she was reported a missing person with police concerned for her welfare.
She was last seen in the Ring Way area of the city at 9am on Friday 4 December.
Xiaolin is Chinese, 5ft 2ins, of slight build with links to Manchester and Liverpool.
If you have any information, call 101 quoting ref 791 of 1 December.