Human Interest Real People Real People Tragedy U.S. Tourist, 59, Disappears on Greek Island amid Heatwave Days After Michael Mosley Found Dead Albert Calibet, a retired police officer, went missing on June 12, two days after Mosley’s body was found on the island of Symi By Abigail Adams Abigail Adams Abigail Adams is a Human Interest Writer and Reporter for PEOPLE. She has been working in journalism for seven years. People Editorial Guidelines Published on June 13, 2024 12:38PM EDT Close Albert Calibet. Photo: Municipality of Amorgos An American tourist has gone missing in Greece just days after television doctor Michael Mosley was found dead as a heatwave impacts the region. Albert Calibet, 59, went missing on Tuesday, June 11, two days after Mosley’s body was found on the island of Symi, according to CNN and the BBC. The retired police officer was reported missing after he did not return from a hike on the island of Amorgos, per the BBC, citing local officials. Calibet has been traveling “to Amorgos almost every year” for the last 10 years, Amorgos’ deputy mayor of tourism Popi Despotidi told CNN. “It is strange because he is not a person who walked the route for the first time,” Despotidi told international news organization Greek Reporter. “He knows Amorgos better than me.” Michael Mosley's Wife Reacts After His Body Is Found: 'We Had an Incredibly Lucky Life Together' A friend who was vacationing with Calibet at the time of his disappearance told authorities that the ex-cop left for the hike to Katapola Amorgos around 7 a.m. local time, according to the outlet. He contacted local authorities when he was unable to contact Calibet, who had not reached his destination shortly before 3:30 p.m. that same day. His last known contact was reportedly with his sister, whom he sent a photo of a trail sign. He is believed to have two phones, but has not answered either of them. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from celebrity news to compelling human interest stories. The island of Amorgos, where an American man disappeared on Tuesday, June 11. Andia/Universal Images Group via Getty Images His disappearance comes as the island of Amorgos faces a “severe high temperature warning,” with high temperatures expected to last through Thursday, June 13, according to The Telegraph. Authorities said a 74-year-old Dutch tourist has also been missing since Sunday, this time on the island of Samos, according to CNN. Similar to Calibet and Mosley, the Hellenic Rescue Team of Samos said the missing man went for a hike in the Marathokampou area of the island, but has not been seen since. British television doctor Michael Mosley, who was found dead on a Greek island on Sunday, June 9. S Meddle/ITV/Shutterstock Police spokesperson Konstantia Dimoglidou told CNN on Thursday that first responders and volunteers are on the search for both men. “Unfortunately, so far we have no news about either of them,” she explained. Mosley was reportedly found dead on Sunday, four days after he was reported missing on Wednesday, June 5. 'Beloved' Wife and Mother Who Went Missing While Hiking in Arizona Heat Found Dead The 67-year-old British national was found lying face-up against a fence above a beach in Agia Marina, and appeared to have fallen down a steep slope, Symi mayor Lefteris Papakalodoukas said, per the Associated Press. An initial post-mortem examination reportedly determined Mosley died of natural causes.