BBC:

Iran's President, Hassan Rouhani, has dismissed US President-elect Donald Trump's criticism of the nuclear deal that it signed with world powers.

Mr Trump has described the agreement - implemented a year ago - as "the worst deal ever" and threatened to scrap it.

But Hassan Rouhani said the comments were just "slogans" and that there was no chance of any renegotiation.

Under the deal, Iran agreed to curb its sensitive nuclear activities in return for the lifting of economic sanctions.

Outgoing US President Barack Obama says the deal will prevent Iran from obtaining a nuclear weapon.

Iran says it has the right to nuclear energy - and stresses that its nuclear programme is for peaceful purposes only...

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