British police have said that four men and two women have been charged with membership of a terrorist group.
The six were arrested at addresses in London and Cheshire on Wednesday and charged under the Terrorism Act yesterday, a Scotland Yard spokesman said.
The charges relate to being a member of a proscribed organisation and "facilitating the retention or control of terrorist property".
One Briton was among those arrested and the others were Turkish nationals, police sources said.
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There appeared to be little evidence of the arrests being connected with any planned terror attack on London, sources indicated. But police refused to give any further details about the background to the arrests.
PA