Two British nationals, a man and a woman, are in custody in Iran's southeastern city of Kerman on security-related charges, state media reported on Thursday.

Man and woman have met British ambassador to Iran, but their identities and the reasons for their detention have not been revealed

Two British citizens have been detained in Iran, the Foreign Office has said. British officials are providing consular assistance to both of the individuals, a government spokesperson said. The Foreign Office said it was in contact with Iranian authorities.