A permanent memorial for the 30 British victims of the Tunisia terror attack is to be created, David Cameron has announced.
A second site of remembrance will be established for all British nationals who have been killed in atrocities overseas.
The British Prime Minister said: "It is right that we mark and commemorate them and others murdered by terrorists overseas appropriately, and support the loved ones they have left behind in every way we can."
Over the coming months, bereaved relatives of the holidaymakers killed by a lone gunman in Sousse will be consulted on the memorial's location and design.
The families are being helped by Tobias Ellwood, a Foreign Office minister who has first-hand experience of losing a loved one in an overseas terrorist attack. In 2002, his brother Jonathan died in the Bali bombings.
Mr Ellwood has said the Tunisia attack memorial may be located in the north of Britain, which is where most of the victims were from.
He added: "Having been through a similar situation, I know how important it is that these families, who have been united by a single tragedy, have that marked in one place.
"They will end up providing mutual support to each other, and to have this memorial to their loved ones will be very important. It is also right that the nation recognises the scale of this appalling event."
Both memorials are going to be funded through fines levied on banks by the Financial Conduct Authority in the UK.
Tunisia's president has declared a state of emergency, and warned the country was "not safe" and at risk of collapse from further terror attacks.
In a televised address on Saturday, President Beji Caid Essebsi said an "exceptional situation required exceptional measures" - and he officially reintroduced urgent measures to tighten security nationwide.
All three Irish victims of last week's terror attack in Tunisia have now been laid to rest.
The funeral took place yesterday of Lorna Carty - a mother of two from Robinstown in Meath.
Relatives of Athlone couple Larry and Martina Hayes - the two other Irish people killed in the mass shooting - attended the service.
