The comments come after a missile was mis-fired in routine testing
UKIP Defence spokesman Bill Etheridge hit out at the SNP and Labour leaders after party members launched a brutal offensive over the apparent cover-up of the misfiring of a submarine-launched ballistic missile.
The incident occurred during routine testing last June following the three-year and £350 million refit of the Navy’s Vanguard-class submarine HMS Vengeance.
It is believed one missile, fired from the nuclear submarine off Florida, malfunctioned and veered towards mainland US – sparking panic among anti-Trident campaigners.
Now the West Midlands MEP is demanding MPs do not use the incident to try to railroad the UK's nuclear deterrent.
UKIP defence secretary Bill Etheridge slammed the two leaders
The missile was launched during a routine test off the US coast
He said: “Instead of a calm, reasoned response to this news we have the hard left SNP and leader of the opposition using this as a reason for us to remove an entirely legitimate nuclear deterrent at a time when we are living in a world where rogue states and non state actors can threaten our very existence with NCB weapons.
"Sturgeon and Corbyn have once again proved how entirely unsuitable they are for public office."
Speaking at a Brexit rally in Westminster, the MEP said the news the test had gone off course was “no reason to demand an end to the UK having a strategic nuclear deterrent”.
Michael Fallon was at the centre of cover-up allegations in the House of Commons
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Mr Etheridge told Express.co.uk: "It sounds terribly alarming when people read headlines screaming that nuclear tests went wrong, but we must not confuse nuclear powered submarines testing missile systems with the misfiring of an armed nuclear missile.
"HMS Vengeance, the submarine in question, left HM Naval Base Devonport in February 2016 following a three and half year, £350 refit and refuelling before undertaking 'Demonstrating and Shakedown Operations (DASO) which included the test of an unarmed missile.
"This is why we have testing: to check to see if upgrades and refits are working properly.
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Sturgeon and Corbyn have once again proved how entirely unsuitable they are for public office
UKIP Defence spokesman Bill Etheridge
“In this case it wasn't and I am sure that changes would have been made before Vengeance was returned to HM Naval Base Clyde to arm its missiles with nuclear warheads before re-entering the Trident submarine patrol cycle.
"It is also highly likely that given this was a joint project with the USA, of which 14 of its 18 Ohio class submarines also carry Trident D5, that there was an element of cooperation with our allies to not publicise a potential weakness to our enemies.”
Earlier this week, Labour leader Jeremy Corbyn labelled the failed nuclear test a "catastrophic error" and argued that the world's nuclear states need to debate disarming such weaponry.
MPs were responding to an urgent question about the Trident missile test
Speaking on Sky News, Mr Corbyn said: "While it wasn't armed, goodness knows what the consequences of that could have been.
"I think we need a serious discussion about that, but also let's look to the longer future.
"I've been involved in nuclear non-proliferation conference discussions for a very long time.
“I think this ought to be the opportunity in which we pursue a policy of discussions with all of the nuclear-weapon states – the five permanent members of the UN – as well as those others in order to bring about nuclear disarmament, in order to bring about our participation in the non-proliferation treaty, which after all was a Labour creation in the 1960s."
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His comments come almost a year after both he and SNP leader Nicola Sturgeon condemned plans to renew the nuclear deterrent program at a rally in London in February 2016.
Thousands of people joined the march in Leicester Square, where the Scottish First Minister described Trident as "immoral" and "impractical".
And Mr Corbyn told campaigners: "We live in a world where so many things are possible. Where peace is possible in so many places.
"You don't achieve peace by planning for war, grabbing resources and not respecting each other's human rights."
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Jeremy Corbyn also condemned the nuclear deterrent
Earlier today, the former head of the Royal Navy Lord West blasted the Government for its apparent mishandling of the recent incident.
Speaking at an emergency Defence Committee hearing in Commons today, he claimed that anyone who thought a Trident missile test going wrong could be kept secret was either stupid or foolhardy.
He told the panel: “I think one should be as transparent as one is able to.
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“When you know is is being monitored by people like the Russians, when you know all that is done, it is a silly thing to do to try and hide it.
“That is silly, it’s just a stupid thing to do.
“This is a big bonanza occasion, we do this once every four years, it was inevitably going to come out.
“If anyone thought this wasn't going to come out, they're living in cloud cuckoo land."