Iran's Foreign Minister Mohammad Javad Zarif rejected the claims about an Iranian diplomat arrested over allegations of plotting a bomb attack in France.

“How convenient: Just as we embark on a presidential visit to Europe, an alleged Iranian operation and its 'plotters' arrested”, Mohammad Javad Zarif tweeted on Monday.

Iran's Foreign Minister said that the claims about an Iranian diplomat arrested over allegations of plotting a bomb attack on a meeting of the notorious anti-Iran terrorist group, the Mujahedin Khalq Organization (MKO), in France constitute a "sinister false flag ploy."

Zarif went on to reject any kinds of violence and terrorism, saying “Iran unequivocally condemns all violence and terror anywhere.”

Belgian authorities said on Monday that the Iranian diplomat had been arrested along with a 38-year-old man and a 33-year-old woman, suspected of plotting a bomb attack on the meeting in Paris attended by US President Donald Trump's lawyer, Rudy Giuliani, and several former European and Arab ministers.

Heading a high-ranking politico-economic delegation, Iranian President Hassan Rouhani arrived in Zurich, Switzerland, earlier on Monday at the invitation of his Swiss counterpart, Alain Berset. Switzerland is the first leg of Rouhani's European tour, which will also take him to Austria.