Nelson Mandela (95) went home in an ambulance on Sunday after nearly three months in a hospital, but authorities said his health remained critical and sometimes unstable.

The office of South African President Jacob Zuma said Mr. Mandela will receive the same level of intensive care that he did in the hospital, administered by the same doctors.

Mr. Zuma’s office said the team of doctors treating Mr. Mandela, also known by his clan name Madiba, is “convinced that he will receive the same level of intensive care at his Houghton home that he received in Pretoria. His home has been reconfigured to allow him to receive intensive care there”.

The statement also said: “If there are health conditions that warrant another admission to hospital in future, this will be done.”

Mr. Mandela was admitted to the hospital on June 8 for what the government described as a recurring lung infection. Legal papers filed by his family said he was on life support, and many South Africans he was close to death.

One of Mr. Mandela’s grandsons, Mandla Mandela, said the former President’s return home was a “day of celebration” for the family.

The African National Congress, South Africa’s ruling party, welcomed the hospital discharge of its former leader.

“We believe that receiving treatment at home will afford him continuous support from his family and loved ones,” it said in a statement.

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