Economy Minister Simon Hamilton has been called to publish a full timeline on the botched Renewable Heat Incentive (RHI) scheme as well as a full list of beneficiaries.

the scheme is set to cost the public purse around £490million.

Sinn Féin MLA Alex Maskey also called on the Minister to state when he became aware that his special advisor's father-in-law was in the RHI scheme.

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Mr Maskey said: ""Revelations that the father in law of the DUP special advisor to economy minister Simon Hamilton was in the RHI scheme has only served to further undermine public confidence in the political institutions.

"Questions now arise about what exactly Simon Hamilton knew about this and when he was made aware of it.

"Simon Hamilton now has a responsibility to come forward and make this information public in the interests of accountability and transparency.

"We need to see the publication of the full list of beneficiaries, with dates of when they joined the scheme, in order to address concerns around any potential conflicts of interest in relation to the scheme."

(CD)