As it happened: Martin McGuinness resigns as deputy First Minister
Sinn Fein's Martin McGuinness has resigned as deputy First Minister of Northern Ireland over Arlene Foster's refusal to stand aside during an investigation into the failed Renewable Heating Incentive.
The minister said the DUP leader could have no Executive role during the investigation.
He said it was with "deep regret and reluctance" he was tendering his resignation. He said the party would not nominate a replacement.
"We now need an election to allow the people to make their own judgement on these issues democratically at the ballot box," he said.
He said Mrs Foster's refusal to show humility over the scandal was "indicative of a deep seated arrogance which is inflicting enormous damage on the Executive, the Assembly and the entire body politic".
In a statement the MLA said his resignation was also in protest at what he called the “DUP's failure to accept the principles of power-sharing and parity of esteem”.
"Today is the right time to call a halt to the DUP’s arrogance,” he said.
"There will be no return to the status quo.”