Tunisian President Beji Caid Essebsi has died after being hospitalized with a severe illness. In 2014 he became the countrys first democratically elected leader, following the Arab Spring.

Tunisias president, Beji Caid Essebsi, passed away Thursday at a military hospital, the North African countrys presidency announced. He was 92.

Essebsi, the oldest head of state after Britains Queen Elizabeth II, was hospitalized with a severe illness in late June and returned to intensive care on Wednesday evening at the Tunis military hospital.

In a statement, the Tunisian presidency called for unity following Essebsis death.

“After the revolution, the president led the people to avoid confrontation and led the democratic transition,” it wrote.

Essebsi came to power in 2014 as Tunisias first democratically elected leader, three years after the Arab Spring uprising toppled the regime of Zine el-Abidine Ben Ali.

The country has declared seven days of national mourning for Essebsi, who led what many characterize as the only democratic success of the revolts that swept across the Arab world.

Health concerns

Concerns about Essebsis health had been mounting in recent weeks. Politicians had been calling for transparency from the presidency regarding Essebsis health since he was hospitalized in June.

When his office this week released a video of Essebsis meeting at the Defense Ministry on Monday, he appeared visibly frail on the film.

The speaker of parliament, Mohamed Ennaceur, has taken over as interim president, in line with the constitution, and will remain in office for 45 to 90 days while elections are organized.

The Electoral Commission announced later on Thursday that the presidential elections would be held on September 17, instead of the scheduled November 17.

Parliamentary elections are due to be held on October 9. The elections are the third set of polls in which Tunisians will be able to vote freely.

Essebsi recently announced that he wouldn’t run in the presidential election, saying a younger person should lead the country.