Nikos Dendias 'very worried' about 'Nazi' Golden Dawn
8 July 2013 Last updated at 08:53 BST
Supporters of the far-right Golden Dawn party have been linked to violent attacks against migrants in Greece.
The Minister for Public Order, Nikos Dendias, tells Gavin Esler about his concerns about Golden Dawn's growing popularity.
You can watch the full interview on BBC World News on Monday 8 July at 08.30 GMT, 14:30 GMT and 20:30 GMT and on the BBC News Channel on Tuesday 9 July at 00:30 BST.