Four people have been arrested and £80,000 seized by detectives investigating the suspected theft of £1 million from two UK banks, Scotland Yard said.
A suspected live hand grenade was also removed from an address by specialist explosive officers, following raids in Enfield and Islington yesterday morning.
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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