The North's First Minister Peter Robinson has said no-one in his family or party hoped to benefit by "one penny" from the sale of Nama's Northern Ireland loan portfolio.

He said the only thing Stormont ministers involved in promoting the deal were going to get out of their efforts was to see an eventual upturn in the construction trade.

The DUP leader said he only became aware of the plan for multi-million pound fixer fees in relation to the sale when the issue became public knowledge.

Mr Robinson told the BBC there had been "no vulgar talk about fees" at any meetings involving ministers.

Mr Robinson denied that the DUP had crossed a line by seeking to promote the sale of the Nama portfolio, first to the Pimco investment fund, and then the US firm Cerberus.