On the hustings: The Istanbul bombings show the need for an end to private armies in Northern Ireland, the Ulster Unionists have said.
UUP Strangford candidate, Mr David McNarry, said: "The murderous al-Qaeda bombings in Istanbul bring home the urgency of closing down private armies in this land. I call upon the republican movement to state unequivocally and publicly that its war is over and its paramilitary machine is being made redundant."
UUP East Belfast candidate, Sir Reg Empey, urged unionists to use their vote tactically to keep Sinn Féin out of seats where necessary.
"In some constituencies where, for instance, unionists might be in a minority, gains can be made by continuing to vote for parties which would perhaps keep Sinn Féin out of seats.
"Constituency by constituency, people are going to have to look at it and make up their minds as to whether they can influence the final seats."
The UUP launched a billboard campaign warning supporters it was "too important to stay at home" and they must ensure they vote on Wednesday.
Party leader, Mr David Trimble, said he was confident the UUP would win the battle within unionism. He accused the DUP of recycling old ideas and running "the most fraudulent campaign in Ulster's electoral history".
The Rev Ian Paisley has accused the UUP, the SDLP and Sinn Féin of waging an anti-DUP campaign, not a pro-agreement one. He said he often didn't know whether attacks on his party were being orchestrated by Cunningham House (UUP headquarters) or Connolly House (Sinn Féin offices).
"Ulster Unionists and nationalists are tag-team partners in their campaign against the DUP," Dr Paisley said. "Far from damaging the DUP, these attacks have reinforced the message of why unionists should vote for the party." It was notable that nationalists were urging transfers to the UUP, he added.
The SDLP's Mr Séamus Mallon said the DUP claimed it wanted the Belfast Agreement renegotiated but it really aimed for its destruction.
He said the DUP proposed a system at Stormont where power resided with the assembly, rather than ministers, removing the need for a cabinet.
Mr Mallon said this would cause chaos. "You cannot run a government without a cabinet. You cannot have an assembly overruling every single decision of a minister."
DUP East Derry candidate, Mr Gregory Campbell, claimed the DUP proposals were being "misrepresented and misunderstood". The DUP fully acknowledged that any future agreement must be acceptable to nationalists as well as unionists, he added.
The SDLP has warned that a Sinn Féin election victory could mean a return of "De Brún, the destroyer" of the health service. The party is highly critical of the former health minister's record.