Taxpayers had to shell out £3million to fix a nuclear submarine after an embarrassing crash.

HMS Ambush, which has “world-lead­­­ing sensors” to detect vessels, hit a merchant ship while submerged.

The repair bill is just one example of cash losses totalling more than £218million in Ministry of Defence accounts for 2016/17.

More than £3million was spent on gas canisters which were later “lost”. And ration packs worth £363,000 had to be disposed of after they passed their expiry dates.

The advanced sub has 'world-leading sensors' to detect vessels (
Image:
Reuters)

HMS Ambush, our newest and most advanced sub, crashed on July 20 last year while surfacing off Gibraltar. The conning tower and turret were badly dented.

The £1.1billion vessel, which carries Tomahawk cruise mis­­siles, limped back to Gibraltar before returning to Faslane, Scotland, for repairs.

The £1.1billion vessel carries Tomahawk cruise missiles (
Image:
Getty)
Shadow Defence Secretary Nia Griffiths has blasted the MoD for wasting millions (
Image:
Western Mail)

Other cash drains included £601,000 for the loss of Typhoon/Tornado navigation pod and £658,000 on a vehicle des­­troyed by fire during training.

However, total losses were half the £544million of the previous year.

Shadow Defence Secretary Nia Griffith said: “Millions have been wasted on cancelled projects and lost equipment at a time when the Government says it cannot afford to give our armed forces the pay rise that they deserve.”