Tunisia has made its first arrests over the massacre of 38 people, including three Irish tourists, by a gunman in Sousse on Friday.
Tunisian authorities say they have arrested a group of suspects with links to the man who opened fire at people on the beach last Friday.
The country's interior minister says 1,000 troops will now be deployed to protect the country's beach resorts.
Islamic State has said it was behind the attack.
Meanwhile, books of condolence are being opened for the three Irish victims.
The Irish Nurses and Midwives Organisation has opened one online for Meath woman Lorna Carty who was a member, while a book of condolence will open in Athlone tomorrow for local couple Larry and Martina Hayes.
Mayor of Athlone - Councillor Tom Farrell - says the community is in a state of disbelief.
"I think everyone is in a state of shock that this could happen to this lovely couple who were away on their holidays enjoying themselves," said Cllr Farrell.
"You hear about these things far away, but when it hits someone local that you know very well it's just shocking."