Security around an experimental crop in a Hertfordshire field has been stepped up to prevent any damage during a day of action by campaigners.
Those protesting against the genetically modified wheat are being kept away from the Harpenden test site, run by Rothamsted Research.
They are concerned about potential contamination from the cereal:
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With just three days to go until polling stations open, representatives from all parties were out in force across the capital today.
The garden above the Canary Wharf Crossrail station is now open to the public.
First time buyers in London now need an average annual income of £77,000 - nearly double the amount required in the rest of the country.