President Recep Tayyip Erdogan's illness comes just weeks before Turkey's crucial election
President Recep Tayyip Erdogan's illness comes just weeks before Turkey's crucial election AFP

Turkey's ailing President Recep Tayyip Erdogan on Thursday will try to offset his absence from the campaign trail weeks before crucial elections by unveiling a Russian-built nuclear plant by video link.

Erdogan is also expected to speak with Russian President Vladimir Putin as he attempts to project health and vigour at one the more vulnerable moments of his two-decade rule.

The dominant 69-year-old leader has laid low since getting sick while conducting a live television interview on Tuesday evening.

Erdogan had been campaigning tirelessly to pull out one of his trademark come-from-behind wins in May 14 parliamentary and presidential polls.

But he looked wan during the interview and then cut it off in the middle of a question 10 minutes into the show.

The camera shook and the screen turned blank before going to a commercial break. A voice could be heard saying "oh wow" in the background while someone repeatedly coughed.

Erdogan returned about 15 minutes later and apologised for getting sick.

He said he developed "stomach flu" while hopping between five cities for campaign rallies and public project launches on Monday and Tuesday.

Health Minister Derya Yanik told Turkish television on Thursday that Erdogan was on the mend.

"There is nothing to worry about. He is well," she said. "He will resume his intense programme tomorrow, I think."

But the health scare has upturned Erdogan's travel schedule and complicated his path to a third decade of rule.

Erdogan is know for his love of campaigning and embrace of political fights.

Polls show him running neck-and-neck or losing against opposition leader Kemal Kilicdaroglu in Turkey's most momentous election in decades -- if not its entire post-Ottoman history.

His Islamic-rooted party's control of parliament through an alliance with a far-right group is also under threat.

Erdogan had used his campaign speeches to launch venemous barbs at the opposition and portray himself as a man who gets the job done.

That image has been shaken -- and his office is fighting back.

The president's powerful media director Fahrettin Altun posted screen shots on Twitter of Chinese state media and some popular accounts speculating about Erdogan's condition being more serious than officially reported.

"We categorically reject such baseless claims regarding President Erdogan's health," Altun wrote.

"No amount of disinformation can dispute the fact that the Turkish people stand with their leader and Erdogan and his AK Party are set to win the May 14 elections."

Rumours about Erdogan's health have been swirling since he underwent two gastrointestinal surgeries in 2011 and 2012.

The operations went well but left him with a slight hitch in his gait that appears to have fed some of the social media speculation.

Turkey does not publicise the results of its leaders' health evaluations and makes it illegal to "insult the president".

Thousands of people have been prosecuted for the offence -- punishable by either a fine or a jail term of up to four years.

Turkey's main opposition leaders all quickly tweeted messages wishing Erdogan a speedy quick recovery.

Erdogan's expected video link hookup with Putin will unveil a project that Russia began building in 2018.

The Akkuyu plant's construction on Turkey's southern shore has been complicated by sanctions the West imposed on Russia for its invasion of Ukraine.

"Yes, we have certain logistical problems," Akkuyu plant director Sergei Butskikh told reporters on the eve of the launch.

"The transportation routes are getting longer. Not all of the shipping companies are able to work with us. So here yes, we feel the sanctions. But this has not affected the quality of the plant's construction," he said.

Erdogan has been one of the few world leaders to maintain good relations with Putin by refusing to sign up to Western sanctions on Russia and trying to mediate an end to the war.

Erdogan is trying to extend his rule into a third decade
Erdogan is trying to extend his rule into a third decade AFP