In the ITV interview, Ms Smith said that Isil’s caliphate was “not over yet” but that supplies were running out in the groups last stronghold.
“The people don’t have food. They’re struggling, everything is expensive, so I don’t know how they’re going to keep living,” she said.
“Morale is low, I suppose. Some are strong, it’s like any roller coaster of people. Some want to leave, some don’t. Some are hungry, some are not hungry. Some are tired, not tired.”
She had previously spoken of converting to Islam in 2011, revealing she was previously a party girl who “did it all – the drink, drugs, smoking, everything”.
In her ITV interview last week she said explained her desire to join Isil: “No music, no smoking, no fighting, no drinking, no prostitution… you want a clean life like this, that is what you want, but sometimes it is not like this,” she said.
The Irish Government said the it was “aware of reports of an Irish citizen detained in northern Syria” but declined to formally confirm her identity.
The Irish police confirmed it was aware of an Irish woman “who left Ireland 3 or 4 years ago having become radicalised. She was previously a member of the Irish Defence Forces”, but declined to confirm she was in custody.