Royal Navy and Royal Fleet Auxiliary ships have taken part in a siren salute in honour of Her Majesty The Queen as part of the Platinum Jubilee celebrations.
A number of vessels in the United Kingdom and abroad conducted the salute.
Many of the ships shared videos of the salutes on social media.
HMS Scott, the Royal Navy Ocean Survey Vessel, played the siren for 70 seconds "to mark 70 years of devoted service".
Platinum Jubilee celebrations will continue until the end of Sunday.
On Saturday evening, Prince Charles and Prince William are expected to honour the Queen in separate speeches at the Platinum Jubilee Concert.