No word on jailed Tunisian opposition leader Ghannouchi for 11 days, his son tells Al Jazeera.

The son of jailed Tunisian opposition leader Rached Ghannouchi says his family and lawyers have been unable to see or contact the 85-year-old for 11 days since he was hospitalised after collapsing in prison.

In an interview with Al Jazeera on Monday, Moadh Ghannouchi said the last time lawyers saw his father was days before he temporarily lost consciousness on July 17, and that requests to visit him in hospital, including one submitted to the public prosecutor, had been refused, leaving the family with no confirmation of his whereabouts or condition.

“It is like a situation of enforced disappearance,” he said.

Ghannouchi said his father, who has high blood pressure and difficulty breathing, had been left exposed to a severe heatwave in a prison with no air conditioning.

“We hold the authorities fully responsible for his condition,” he said, alleging that his father’s confinement in a stiflingly hot prison was intended to worsen his health.

“It was not enough to imprison him – they want to torment him further,” Moadh told Al Jazeera.

“This is stressful for us and certainly for him as well because he’s used to always having a number of visits every week from lawyers and from family – so it has been 11 days cut off from everything, from every visit, from everyone.”

Ghannouchi said conflicting rumours had spread on social media, with some placing his father at the Rabta public hospital in Tunis, others at a military hospital, and some claiming he had suffered a heart attack. But the family has received no official information, he said, with the authorities refusing to communicate.

In a statement on his official Facebook page on Monday, Ghannouchi’s defence team demanded information on his condition. An Ennahda party spokesperson told Al Jazeera that it did not know which hospital he is in or his state of health.

The former speaker of parliament and most prominent figure detained in President Kais Saied’s crackdown on opponents has been jailed since April 2023 after receiving a life sentence that his supporters say was politically motivated. Saied’s government denies that prosecutions of opponents are politically driven.

Rached Ghannouchi lost consciousness last week as temperatures inside Mornaguia prison climbed, according to Haifa Chebbi, daughter of another imprisoned opposition figure. She said she witnessed the incident and that the temperature reached 52C (126F). His lawyers said on Thursday that his condition was “critical.”

The UN Working Group on Arbitrary Detention previously found that Ghannouchi’s detention was arbitrary and called for his immediate release, a ruling his son said authorities ignored.

On Sunday, the National Salvation Front, a broad opposition coalition, urged the authorities to issue an immediate statement on his health and Amnesty International called for the protection of prisoners during the heatwave.