Authorities have identified four cyclists who were killed while riding in Tajikistan in an attack that has been claimed by the IS terror group.
The victims had all kept online blogs documenting their intercontinental bike journeys.
A couple from Washington DC who quit their jobs to cycle and had already toured three continents were among those killed in Sunday's attack.
The other two were a Swiss citizen and a Dutch national.
American couple Lauren Geoghegan and Jay Austin, both 29, had been travelling for over a year.
In April, Mr Austin wrote during a bike tour of Morocco: “Badness exists, sure, but even that's quite rare.
“By and large, humans are kind. Self-interested sometimes, myopic sometimes, but kind.
“Generous and wonderful and kind. No greater revelation has come from our journey than this.”
The pair had cycled through Africa and Europe before flying to Kazakhstan in May.
