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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Members of the RMT union who work on the Central Line will walk out at 9pm on Wednesday.
Southeastern was hit after a freight train derailed causing travel chaos for hundreds of thousands of passengers.
The club says the decision to sack Ken Hare was "a disappointment". He had been at Roots Hall for 27 years.