Five people including Blackburn Rovers footballer DJ Campbell have been bailed until April following their arrests as part of a spot-fixing investigation.
The National Crime Agency said a sixth person is still being questioned as part of the probe.
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The Grammy-winning singer posted a picture of the two on his Instagram saying the two got engaged right before the new year.
British Airways said it was taking the matter "extremely seriously" and is assisting police with their enquiries.
The rest of this weekend will see further spells of rain or snow across the UK. Icy roads expected