Prince William has said his thoughts are with those "confronting unimaginable grief" following the deaths of 22 people in the Manchester terror attack.
The Duke of Cambridge also said he was "shocked and saddened" to learn of the attack which left a further 59 people injured.
In a letter also written on behalf of his wife, the Duchess of Cambridge, and Prince Harry, the 34-year-old praised the people of Manchester "for their display of strength, decency, and community", calling it "an example to the world".
New CCTV of the Manchester bomber Salman Abedi has been released by police.
The younger brother of the Manchester bomber has said Salman Abedi was radicalised online in Britain.