The Environment Secretary Liz Truss has said it is "absolutely offensive" for Ed Miliband to imply David Cameron has some role "directly or indirectly" for the recent deaths of migrants in the Mediterranean.
In a foreign policy speech later today, the Labour leader is expected criticise the prime minister for the ”failure of post-conflict planning” after the fall of the Gaddafi regime in Libya.
The ongoing instability in the country has been blamed for the boom of people-trafficking crossing from Libya to the Mediterranean and the subsequent increase in migrant deaths on these boats.
Ms Truss said: "To bring this into an election campaign I think is outrageous and disgraceful.
"Actually accusing the Prime Minister of causing these deaths - whether directly or indirectly - I think is wrong."
"Of course we should be talking about foreign affairs but it has to be done in a proper manner", she added.
A minority government led by Labour or the Tories would spell economic disaster and could cost the average homeowner £800 a year, the Liberal Democrats have claimed .
In a speech, Chief Secretary to the Treasury Danny Alexander will say "An unstable government, unable to take serious decisions, pulled sharply to left or right, with Alex Salmond or Nigel Farage, would cost us all dear. It would jam the brakes on the economic recovery."
"As the market commentary makes clear, such an outcome would lead to higher costs of government borrowing, mortgage costs rising by at least an estimated £800 a year, and a weaker pound.
"That would be an economic disaster for Britain, and an insult to the massive effort and the many sacrifices made by millions of people and businesses who are powering our recovery.
We are the only party that can keep Britain in the centre ground, the markets happy and the recovery going."
The Prime Minister will set out a series of changes to ensure English MPs have the final say on income tax rates in England.Read the full story ›
Labour have blasted Jeremy Hunt after he admitted voters did not believe the Tories over the NHS.
Shadow Health Minister Andy Burnham said: "Jeremy Hunt has finally conceded what everyone knows to be true, you can't trust a word the Tories say on the NHS.
"The reason why they have a credibility problem is because they have a track record of failing to keep NHS promises.
"Last time out, they promised 'no top-down reorganisation' - but then brought forward the biggest in the history of the NHS.
"People won't believe David Cameron on the NHS at this election because they know he hasn't got a clue where the money is coming from. They know you can't fund the NHS on an IOU.
"While Labour has a better, fully funded plan to invest in the NHS, the Tories have a plan for extreme cuts which will see them cut the NHS."
The Conservatives retain a slender lead over Labour in a new poll, while support for the Lib Dems dips.Read the full story ›
Jeremy Hunt has compared modern politics to dating app Tinder and called for a return to old-fashioned doorstep canvassing.Read the full story ›
Labour has fallen below 30% in an opinion poll for the first time in the General Election campaign.
The poll for the Daily Mirror put Ed Miliband's party on 29% - down four points in comparison to a similar poll last week.
Meanwhile the Lib Dems jumped three points to 10% while the Tories dropped a point to 33%.
Ukip added one point to reach 18% - just one point short of their best rating of the election campaign, while the SNP remained unchanged on 4% and Greens gained one point to put them at 4%.
Meanwhile a survey for ITV's Good Morning Britain found just 16% of 1,500 voters polled said they knew who they would be voting for on May 7 while one in five, 21%, said said they were still "completely undecided".
David Cameron's battle bus lost a wing mirror as it laboured through traffic in South Kensington this evening, ITV News Political Correspondent Libby Wiener has reported.
Cameron's battle bus loses wing mirror as battles through South Kensington traffic http://t.co/SM5BMSDDym
Lord Mandelson said Ed Miliband has "way exceeded my expectations" and hailed the Labour leader's election campaign.
The former strategy chief and cabinet minister - who last month declined to positively endorse the party leader - said Miliband had confounded his critics and found the national "Zeitgeist".
"I started feeling at the end of last week that something had shifted," Mandelson told Channel 4 News.
"That the plates had moved and Labour has captured a Zeitgeist in this campaign and the most striking feature of it is what's happened to the two leaders.
"Miliband has moved forwards. He gained credibility. He's exceeded most people's expectations. I suppose in a sense mine as well. David Cameron on the other hand has moved backwards."
Asked in March whether the party would do better under another leader, the peer had stopped well short of an enthusiastic endorsement of Miliband.
A one minute summary of the day's election campaign stories.Read the full story ›