Flags fly at half-mast over London Palaces
The union flag flying above Buckingham Palace, the Queen's official London residence, was lowered to half-mast as a mark of respect.
A Buckingham Palace spokesman said: "It's in line with Government policy advised by the DCMS. Union flags (at Government departments) at half-mast on days of significant deaths."
Other royal residences flying the union flag like Clarence House, the Princes of Wales' London home, also lowered their banners.