A total of around 70- or 75,000 people were heading for the border or already at the border.

If you try and send convoys in and you've got no security, you risk losing the convoys. It's incredibly difficult to set foot even a few 100 meters inside that country right now.

We're trying to empty these camps as soon as possible for a whole variety of reasons. The most important is danger.

The Iranians told us that if people really needed to cross they could cross. They asked us to help out and we said we would.