As Iran and Israel continue to exchange heavy strikes, Tehran's nuclear capabilities have come into focus.
On Friday, Israel launched a surprise aerial campaign against targets across Iran prompting the country to launch several waves of missiles in retaliation.
The Israeli prime minister said Israel was pursuing three main objectives, which included "the elimination of the nuclear programme" in Iran.
A round of US-Iran nuclear talks due to be held in Oman were cancelled in the aftermath of Israel's initial strikes.
RTÉ's global security reporter Yvonne Murray takes a look at Iran's secretive nuclear programme.
