Munich , Germany ( CNN ) -- Iran will give `` positive consideration '' to a renewed prospect of one-on-one talks with the United States on its nuclear program , its foreign minister said Sunday . Foreign Minister Ali Akbar Salehi said a new round of talks between Iran and the five permanent U.N. Security Council members , plus Germany , would be held February 25 in Kazakhstan . Salehi spoke on the last day of the 49th Munich Security Conference , a day after U.S. Vice President Joe Biden said the Obama administration remains willing to hold direct talks with the Islamic Republic . `` That offer stands , but it must be real and tangible , and there has to be an agenda that they 're prepared to speak to , '' Biden said . `` We are not just prepared to do it for the exercise . '' The United States and Iran have n't had diplomatic relations since 1980 . But U.S. and Iranian diplomats had occasional talks in Baghdad during the eight-year American war in Iraq , and U.S. President Barack Obama held out the prospect of talks with Iran when he came into office in 2009 . Biden : U.S. open to direct talks with Iran . Salehi noted Sunday that both Biden and the new secretary of state , John Kerry , have mentioned the possibility of talks with Iran in recent days , and `` We take these statements with positive consideration . '' Salehi said Iran has `` no red line '' for bilateral talks and is ready for negotiations over its nuclear program . But he added , `` We have to make sure this time -- and this I think is very fair of us -- to make sure the other side this time comes with an authentic intention , with a fair and real intention , to resolve the issue . '' `` Iran has defied international demands that it halt its production of enriched uranium , which it insists is to be used for civilian nuclear power and research reactors . But the United States and Israel have accused Iran of seeking the capability to produce nuclear weapons , and the International Atomic Energy Agency says it can no longer verify that Iran 's nuclear program is strictly peaceful . Iran 's refusal to shut down its uranium enrichment plants has led to tougher and tougher economic sanctions that have crippled its economy . An oil embargo and banking restrictions have crashed the Iranian currency , the rial . New U.S. sanctions imposed in January targeted a handful of companies and individuals that Washington says are providing materials and technology to Tehran 's nuclear program . Biden said Saturday that U.S. policy `` is to prevent Iran from acquiring a nuclear weapon , '' and said the clerical leadership in Tehran `` need not sentence their people to economic deprivation and international isolation . '' `` There is still time , there is still space for diplomacy -- backed by pressure -- to succeed , '' he said . `` The ball is in the government of Iran 's court , and it 's well past time for Tehran to adopt a serious , good-faith approach to negotiations with the P-5 plus 1 . '' During his confirmation hearing last week , Kerry told the Senate Foreign Relations Committee that if Iran can prove its nuclear work is peaceful , `` That 's what we 're seeking . '' And Obama 's nominee for secretary of defense , Chuck Hagel , has in the past called for direct talks with Iran . It was a point of contention during his confirmation hearing , with some Republicans accusing him of being too soft on Iran . Israeli Prime Minister Benjamin Netanyahu , meanwhile , has urged the United States -- his country 's leading ally -- to set a `` red line '' for nuclear development and make clear that if Iran crosses that line , it would risk war . Netanyahu , who won a new mandate in January , said Sunday that the job of preventing a nuclear-armed Iran `` is becoming more complex , since Iran is equipping itself with cutting-edge centrifuges that shorten the time of enrichment . We must not accept this process . '' CNN 's Chelsea J. Carter and Mariano Castillo contributed to this report .
The U.S. needs a `` fair and real intention '' to resolve the nuclear issue , Iran says . Holding off Iran `` is becoming more complex , '' Israeli PM Netanyahu says . Score: 6 Iranian foreign minister says a new round of P5+1 talks will be held February 25 .