It is understood the Government is in talks with various churches, faiths and other organisations to see if the vigil could be replicated around the country.
Organisers hope churches, town halls and other community buildings will mirror proceedings at the Abbey and that thousands of candles will be blown out simultaneously across the country at 11pm.
They also want the day to be inclusive, with all generations and communities getting involved.
It is believed that a wide range of groups will be invited to the Westminster vigil including the Brownies, Scouts, Guides and representatives from all services of the British military.
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