In March 2016, Kiarostami was hospitalized due to intestinal bleeding and reportedly went into a coma after undergoing two operations. Sources, including a Ministry of Health and Medical Education spokesman, reported that Kiarostami was suffering from gastrointestinal cancer. On 3 April 2016, Reza Paydar, the director of Kiarostami's medical team, made a statement denying that the filmmaker had cancer. However, in late June he left Iran for treatment in a Paris hospital, where he died on 4 July 2016. The week before his death, Kiarostami had been invited to join the Academy Awards in Hollywood as part of efforts to increase the diversity of its Oscar judges. Ali Ahani, Iran's ambassador to France stated that Kiarostami's body would be transferred to Iran to be buried at Behesht-e Zahra cemetery. However, it was later announced that his body would be buried in Lavasan, a resort town about 40 km (25 mi) northeast of Tehran, based on his own will, after it is flown back to Tehran from Paris. His body was returned to Tehran's Imam Khomeini International Airport on 8 July 2016, while a crowd of Iranian film directors, actors, actresses and other artists were in Tehran airport to pay their respects.
Mohammad Shirvani, a fellow filmmaker and close friend, quoted Kiarostami on his Facebook wall 8 June 2016: "I do not believe I could stand and direct any more films. They [the medical team] destroyed it [his digestive system]." After this comment, a campaign was set up by Iranians on both Twitter and Facebook to investigate the possibility of medical error during Kiarostami's procedure. However, Ahmad Kiarostami, his eldest son, denied any medical error in his father's treatment after Shirvani's comment and said that his father's health was no cause for alarm. After Kiarostami's death, Head of the Iranian Medical Council Dr. Alireza Zali sent a letter to his French counterpart, Patrick Bouet, urging him to send Kiarostami's medical file to Iran for further investigation. Nine days after Kiarostami's death, on 13 July 2016, his family issued a formal complaint of medical maltreatment through Kiarostami's personal doctor. Dariush Mehrjui, famous Iranian cinema director also criticized the medical team that treated Kiarostami and demanded legal action.