Israeli Prime Minister Benjamin Netanyahu has revealed what he says are "secret nuclear files" proving Iran is covertly pursuing nuclear weapons.

He said 55,000 pages of material obtained by Israel showed Iran had deceived the world since signing a deal in 2015 to curb its nuclear programme.

It agreed to the deal in return for the lifting of sanctions.

Tweeting earlier, Iranian Foreign Minister Javad Zarif accused Netanyahu of "fooling people".

US President Donald Trump has long threatened to scrap the deal, which was reached under his predecessor, Barack Obama.

Netanyahu showed off what he said were "exact copies" of secret documents obtained by Israeli intelligence in Tehran.

The agreement signed between Iran and six world powers lifted crippling economic sanctions in return for curbs on Tehran's nuclear programme.

There had been fears that Iran would use the programme to create a nuclear weapon.

Source: BBC