Northern Ireland's First Minister Arlene Foster has apologised for not building in cost controls to the Renewable Heating Incentive (RHI) scheme.
She was speaking to the BBC's Stephen Nolan following claims made by the former Enterprise Minister Jonathan Bell that the scheme was kept deliberately open after it was found to be flawed.
The DUP leader has denied wrongdoing over the matter.
My goodness me, that was extraordinary stuff. It was also brutal, ugly stuff too, and, as someone mentioned to me at the time, the sort of showdown that could have been accompanied by the EastEnders theme tune.
Fiasco. Embarrassment. Debacle. Whatever your favourite choice of adjective for the madness of the Renewal Heat Incentive (RHI) scheme, the sorry saga raises broader questions about the nature of Northern Ireland's largest party and its system of government. These problems will not disappear, regardless of Arlene Foster's ultimate fate.
Sinn Fein's Conor Murphy said the devolved institutions have been damaged over the Renewable Heating Incentive, saying claims the scheme was deliberately kept open after it was found to be seriously flawed could lead to a criminal investigation.