UK threatens sanctions on Iran if it does not end uncertainty on nuclear plan.

Foreign secretary, David Lammy, says European nations will act if there is no cooperation with nuclear inspectors.

European nations will act to impose “dramatic sanctions” on Iran in the coming weeks if it does not end the uncertainty about its nuclear programme, including by allowing the return of UN inspectors, the UK foreign secretary, David Lammy, has warned.

He also told the Commons that Iran could not assume Israel would not strike its nuclear sites again.

His tough warning was echoed by the French foreign ministry, which is working closely with the UK in an attempt to persuade Iran to end its new ambiguity about its nuclear intentions and re-engage in talks with the US.

Iran is maintaining a fragile ceasefire with the US and Israel but the risk exists of the crisis flaring up into further warfare unless a diplomatic agreement is found soon.