Tunisian Prime Minister Youssef Chahed has renounced French citizenship before submitting his candidacy for the September 15 presidential election, Tunisian Prime Minister Youssef Chahed said.

The witness said in a post published on Tuesday on his Facebook page that he had acquired French citizenship, like many Tunisians who worked abroad, and called on all other presidential candidates who have foreign nationalities, to give up.

In another blog, the witness published an official document of the tax fees he pays annually to the state treasury, and called on other candidates to take a similar step.

The witness had nominated a representative of the newly established "Long live Tunisia" party, and announced upon his candidacy that he would continue in office and will not resign from him despite some demanded him to do so.

Under article 74 of the Tunisian Constitution, every presidential candidate holding another nationality must pledge in writing to renounce his second nationality if he wins the elections.

Other Tunisian presidential candidates have previously revealed their dual nationality. They include former Prime Minister Mehdi Jomaa, who also holds French citizenship.

The Supreme Electoral Commission has approved 26 candidates to run, but at least one of them faces deportation because of parliamentary recommendations likely to have been illegal.