Police are hunting rustlers who stole 33 sheep from a farm in Slaidburn.
The Swaledale sheep were targeted at 11am this morning (Tuesday). Police are appealing for witnesses.
A spokesman for Lancashire Police said: "The sheep have a UK mark of 18 26 46 and a horn burn of TR. Please be aware if you are offered any sheep for sale and if you are a livestock owner please take all necessary precautions to protect your animals.
"Anyone with any information relating to this theft please contact police quoting log reference number LC-20170808-0463."