Police Scotland is warning residents to be “vigilant and alert” about potential terrorism attacks in the UK.
It follows events in Kuwait, France, and in Tunisia, where the British death toll could rise as high as 30.
A couple from Cumbernauld are believed to have died, while two others from Perthshire are still missing.
A Police Scotland spokesman said: “Following the events in Kuwait, France and Tunisia, Police Scotland together with UK and International Partners are monitoring the situation and our thoughts are with everyone affected.
“Whilst the UK terrorism threat level remains unchanged at severe, we would like to reassure the public that we constantly review security plans taking into account specific intelligence and the wider threat.
“Our priority is the safety and security of the public. We would also like to reiterate to the communities of Scotland our long standing advice to remain vigilant and alert.
“As ever we would urge the public to get in touch to report anything suspicious by calling the confidential anti-terrorist hotline on 0800 789321 or in an emergency always call 999.”