Migrant crisis: Medical help for refugees in the cold

Migrants crossing Europe are facing worsening conditions after snow blanketed large parts of the Balkans.

Aid centres have been organised along borders to help the migrants as they attempt to make their way to their final destination.

Medical charities say most patients are suffering with respiratory problems such as bronchitis and flu.

BBC News spent an evening in a Red Cross centre on the Macedonian-Serbian border to watch a team of young medics at work.