The mothers of the three jailed US hikers in Iran are headed to Tehran to visit their children for the first time since their arrest. Shane Bauer, Sarah Shourd and Josh Fattal were detained last July after straying across Iran’s border during a hiking trip in northern Iraq’s Kurdistan region. The Iranian government approved the mothers’ visit earlier this month. Laura Fattal, the mother of Josh Fattal, said the ordeal has taken a toll on the three prisoners.

Laura Fattal: “There is a calm and composure about Josh that I hold on tight to, because this has been such a long, protracted detention, but I think for all of them, they are feeling extremely isolated. They are very concerned the case has not moved forward, and it is wearing on them terribly, psychologically and also physically.”