A warning has been issued after "extremely harmful" poisons were stolen from a parked vehicle.

They were taken from a pest control van in Holdsworth Street, in Cleckheaton town centre, yesterday morning.

A West Yorkshire Police spokesman said: "The poisons are in a blue rucksack and are extremely harmful if ingested. If found they should not be touched."

They include Deadline - a tray of 12 blue doughnut-shaped grain gels - and Klerat with bitrex - a kilo of square wax blocks in a white plastic container with a red lid. Both of these are odourless.

Also in the rucksack were insect monitors, which are similar to fly paper, and blank Rentokil Canon job sheets.

Anyone with information about the poisons should call Sergeant Paul Normington, at Dewsbury Police Station, on 08456 060606.