Why has Iran stepped up its deportation of Afghan refugees?

For decades, tens of thousands of Afghans – who have fled war and poverty and sought a better future – have crossed into neighbouring Iran.

Tehran has largely been lenient towards members of this community. But in recent years, Iranians seem to have grown tired of hosting them – and sentiment towards foreign nationals has hardened.

The Iranian government has responded by expelling undocumented people. Those being forced out have no choice but to return to the country they escaped from.