WATCH: Police discover £400,000 cannabis factories in Ramsey

Officers seized 401 cannabis plants that were growing in a variety of locations in Middle Drove.

The cannabis plants, which have a combined street value of more than £400,000, were found in n caravans, containers, stables and sheds.

Police say that no arrests have been made and their investigation is ongoing.

The discovery was made on August 7 by officers from the Huntingdonshire Neighbourhood Team, supported by the Rural Crime Action Team.

Police have warned that there are key signs to spot a property that could be being used as a cannabis factory:

The signs of a cannabis factory

• Frequent visitors to a property at unsocial hours throughout the day and night
• Blacked out windows or condensation on the windows, even when it is not cold outside
• Bright lights in rooms throughout the night
• Electricity meters being tampered with/altered and new cabling, sometimes leading to street lighting. High electricity bills can also be an indicator
• A powerful, distinctive, sweet, sticky aroma and noise from fans
• An excessive amount of plant pots, chemicals, fertilisers and compost.