Dog walkers are being urged to remain vigilant as sausage meat containing glass was left for a not so tasty treat for pets.

The Canons Safer Neighbourhood Team have released a series of posters warning dog walkers of several reported incidents in which food has been left in parks.

This food, which has previously included sausage meat, has objects such as glass deliberately placed inside with the aim of hurting animals.

Police have warned that the incidents have occurred in Harrow in recent weeks and are not isolated to just Canons Park.

Anyone with information is asked to call 020 8721 2995 for Canons Safer Neighbourhoods Team.