Migrants in Greece: 'A crisis within a crisis'

Thousands of migrants have arrived in Athens in the past week after being smuggled onto Greek islands.

They have found themselves in a country in the midst of an economic crisis which is struggling to provide them with aid.

Many of the migrants have run out of money and are being forced to camp out in one of the city's main parks where they are relying on charities for help.

Chris Morris reports.