Police are urging trailer owners to review their security arrangements following a spate of thefts.
Since October 6, nine trailers of various types have been stolen from in and around Long Sutton.
Police said: “Owners should ensure that they have a good quality hitch lock and that the trailer is further secured by wheel clamp, or it is securely tethered to a fixed point.”
Further information on trailer and caravan security can be found here.