document: 10 January 2017 Last updated at 16:08 GMT
  "We are now in for a period of direct rule and I really do regret that, I think what the people of Northern Ireland want is stability but that has all been thrown in to very sharp relief," said Arlene Foster.
summary: Northern Ireland faces a "brutal" election following the resignation of Deputy First Minister Martin McGuinness, the outgoing first minister has said.