Saudi Arabia will not rule out building nuclear weapons to defend itself against Iran , its ambassador to the United States has said . Adel Al-Jubeir told CNN the 'kingdom of Saudi Arabia will take whatever measures are necessary to protect its security ' . Iranian officials are due to meet with world leaders to negotiate a relief in sanctions against the country in return for Tehran curbing its nuclear programme . But Al-Jubeir claimed that other countries in the Middle East are 'concerned ' about the prospect of Iran developing nuclear weapons . The Gulf nation and its allies today launched airstrikes against Houthi rebels inside Yemen for a second day straight - in a move it claims protects its southern border from attack . Scroll down for video . Aggression : Saudi Arabia - whose air force has conducted more airstrikes against Iranian-backed rebels in Yemen ( pictured ) today - refuses to rule out acquiring a nuclear arsenal to defend itself . Desperate measures : Its ambassador to the United States Adel Al-Jubeir told CNN the 'kingdom of Saudi Arabia will take whatever measures are necessary to protect its security ' Battle : Yesterday , a Saudi-led coalition began bombing locations in Yemen 's capital in Sana ' a where Houthi rebels who want to overthrow the government were believed to be . War : Saudi Ambassador Al-Jubeir says other countries in the Middle East are 'concerned ' about the prospect of Iran - who they believe are backing the Houthi rebels in Yemen ( pictured ) developing nuclear weapons . The Saudi Ambassador said US President Barack Obama 's administration has told them Iran will be 'cut off ' from acquiring nuclear capability and there will be 'very intrusive inspections ' to prevent such an outcome . The Saudi ambassador added : ' I ca n't say that we like it , because we do n't know the details . 'The assurances we have received from the administration have been positive but we want to see the details before we can make a judgement . ' Yesterday , Saudi Arabia and its allies in the region launched a series of airstrikes against rebel forces inside Yemen who they believe are backed by Iran . Some experts believe the escalating conflict in the country is turning into a proxy war between the Saudi 's and Yemen . Referencing the growing violence there , Al-Jubeir said his country is growing concerned about what he deems 'Iran 's interference in the affairs of other countries in the region ' . Adding : 'We believe Iran 's behaviour ... is not reassuring to people in the region . ' Today Saudi-led airstrikes bombarded the Houthi rebels in Yemen 's capital Sana ' a for a second day straight , but the militia force has reportedly made gains in the south and east . Escape : Airstrikes have destroyed rebel locations in Yemen 's capital Sana ' a but the country 's president Aben Mansour Hadi was yesterday forced to flee a palace in Aden where he was forced to take refuge . Some experts believe the escalating conflict in Yemen ( pictured ) is turning into a proxy war between the Saudi 's and Yemen . The rebel force took control of the capital Sana ' a in a violent coup in January and yesterday , it seized the coastal town Aden and forced President Abd Mansour Hadi to flee the palace he was taking refuge in . Now Reuters news agency reports the rebels have threatened his 'last refuge ' in the port town of Shaqra , 60 miles east of Aden . And a spokesman for the Saudi-led operation has said that defending the Aden government was the campaign 's 'main objective ' . Brigadier General Ahmed Asseri said : 'The operation will continue as long as there is a need for it to continue . ' He added that planes from the United Arab Emirates had carried out their first airstrikes in the past 24 hours . Iran 's foreign minister has said the airstrikes need to 'stop and everybody has to encourage dialogue and reconciliation ' . Even though Mohammad Zarif conceded that Yemen was the 'hot issue of the day ' , he insisted that upcoming nuclear talks with world leader swill be used to find 'common ground ' . Eyewitnesses in Sana ' a said Houthi fighters and allied military units are positioning anti-aircraft weapons at police stations in some neighbourhoods , causing panic among residents who fear they will become targets for air strikes . 'Proxy war ' : A spokesman for the Saudi-led operation has said that defending the Aden government against Houthi rebels ( pictured in Aden ) was the campaign 's 'main objective ' Destruction : Iran 's foreign minister has said the airstrikes in Yemen need to 'stop and everybody has to encourage dialogue and reconciliation ' British Foreign Secretary Philip Hammond said today that Saudi Arabia felt it necessary to intervene in Yemen to avoid Iranian-backed rebels taking over the country along its southern border . He said : 'The Saudis are very exercised by the idea of an Iranian-backed regime in Yemen , ' he told reporters during a visit to Washington . 'They can not accept the idea of an Iranian-backed regime in control of Yemen , which is why they felt compelled to intervene the way they have . ' 'We know there has been Iranian support for the Houthi and we are all concerned to avoid this becoming a proxy war . '
Saudi Ambassador to US said they will take measures to protect country . He said Gulf countries worried Iran will develop nuclear weapons . Iranian officials are due to meet with world leaders for 'nuclear talks ' soon . Saudi-led airstrikes targeted Iranian-backed rebels in Yemen again today . The Middle East nation wants to avoid potential attack from its southern border .