"There’s a heightened security presence in the city and checkpoints have been increased," he said. "ISIS have threatened to march on Baghdad, and even if this is just a rumor it shows their reach in terms of fear is large."
He added: "It’s got everyone here very nervous. Mosul fell so quickly that people here are beginning to ask themselves, ‘How quickly can they come into Baghdad?'"
Hundreds of Western contractors were being evacuated from Balad, 50 miles north of Baghdad, but Khan said Baghdad residents were pinning their hopes on security forces being able to protect them.
"The only hope that people have got is that the security forces are the ones who will be able to protect them," he said. "Some 1,300 ISIS fighters took over a city of two million people [Mosul] and that has an effect on them."