The PSNI is seeking information in relation to the theft of 15 Suffolk-cross ewe lambs and a 14 ft galvanised gate.
It has been reported that the incident occurred between 3pm on March 15th and 7pm on March 18th at a property on Carnanreagh Road, Claudy in Strabane.
In a statement, a spokesperson for PSNI Strabane said: Can we please ask that if you saw anything or anyone acting suspiciously in the area to please give us a call on 101 quoting police reference number 314 of 24/03/2020."
"Alternatively you can also report anything anonymously through Crimestoppers on: 0800 555 111." the statement concluded.