The British Prime Minister David Cameron says he is "gravely concerned" about Northern Ireland's faltering powersharing government.
DUP leader Peter Robinson stepped down as First Minister yesterday, over a crisis sparked by the murder of Kevin McGuigan that police have linked to the IRA.
The British government's rejected the DUP's calls for Stormont to be suspended.
Here's Peter Robinson of the DUP
The DUP's Arlene Foster is taking over as acting First Minister - staving off any immediate collapse.
The Deputy First Minister, Sinn Fein's Martin McGuinness, says it's a crazy situation - and this is a time for leadership:
The Northern Secretary says she will not suspend the North's assembly.
Theresa Villiers says the solution to the current crisis will be found at the talks table.
