Migrant crisis: Inside Hungary's 'filthy' detention centre

The United Nations refugee agency says it is sending pre-fabricated housing units for 300 families to Hungary to provide temporary overnight shelter for refugees.

The UNHCR is also sending emergency supplies for 95,000 people to the region to Hungary, Serbia, Macedonia and Greece.

Human Rights Watch has distributed video filmed inside migrant detention centres in Hungary.

Anna Holligan reports from Roszke.