Ahern warns of danger of 'hard' NI border
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Bertie Ahern warns of danger of 'hard' NI border

The former Irish prime minister Bertie Ahern has warned dissident Republicans could use a re-introduction of border posts in Northern Ireland to justify their campaign of violence.

He said a hard border, with customs checks, will have to be re-introduced because of the UK's decision to leave most of the customs union under Brexit.

Mr Ahern drew a comparison with the IRA's Border Campaign in the 1950s.

But he said he did not expect a return to large-scale violence.

Mr Ahern was speaking to BBC Newsnight ahead of elections to Northern Ireland's Assembly on Thursday.