FILE - In this June 5, 2015 file photo, Abu Wa'el Dhiab, from Syria, right, and Adel bin Muhammad El Ouerghi, of Tunisia, both freed Guantanamo Bay detainees, stand next to the window of their shared... (Associated Press) 
 
 FILE - In this June 5, 2015 file photo, Abu Wa'el Dhiab, from Syria, right, and Adel bin Muhammad El Ouerghi, of Tunisia, both freed Guantanamo Bay detainees, stand next to the window of their shared home in Montevideo, Uruguay. A Brazilian airline is asking its employees to be on the lookout for Abu... (Associated Press) 
 
 FILE - In this June 5, 2015 file photo, Abu Wa'el Dhiab, from Syria, right, and Adel bin Muhammad El Ouerghi, of Tunisia, both freed Guantanamo Bay detainees, stand next to the window of their shared home in Montevideo, Uruguay. A Brazilian airline is asking its employees to be on the lookout for Abu... (Associated Press) FILE - In this June 5, 2015 file photo, Abu Wa'el Dhiab, from Syria, right, and Adel bin Muhammad El Ouerghi, of Tunisia, both freed Guantanamo Bay detainees, stand next to the window of their shared... (Associated Press) 
 
 RIO DE JANEIRO (AP) — A South American airline is asking its employees to be on the lookout for a former Guantanamo Bay detainee who was resettled in Uruguay after being freed by U.S. authorities. 
 
 The alert about Syrian native Abu Wa'el Dhiab adds to a growing mystery about his whereabouts. Uruguayan authorities have insisted for weeks that he is visiting neighboring Brazil and that as a refugee he is entitled to leave Uruguay, but the Brazilian government has said there is no record of Dhiab entering the country. 
 
 Danilo Alves, a spokesman for Colombia-based Avianca Airlines in Sao Paulo, told The Associated Press on Monday that the alert was issued internally to employees, but declined to give any more details. 
 
 The alert, published by the Argentine web news portal Infobae, warns employees that Dhiab may be using a fake passport. The image of the alert posted by Infobae says the information came from Brazil's anti-terrorism police. 
 
 Belela Herrera, a former Uruguayan deputy foreign minister who is a human rights activist, said "this is crazy" to use the word terrorism in relation to Dhiab, who was never charged by U.S. officials and cleared for release. She also questioned media interest in his whereabouts. 
 
 She said Dhiab had told friends in Uruguay's capital that he planned to keep to himself while spending the about-to-end Muslim holy month of Ramadan in the Uruguay-Brazil border region, where there is a Muslim community and mosques. 
 
 "He has a valid identity card, issued by the Uruguayan government, that allows him to go to other countries. He is not a fugitive from justice," Herrera told the AP over the weekend. 
 
 Dhiab is one of six former Guantanamo detainees resettled in Uruguay in late 2014. 
 
 Then President Jose Mujica invited them as a humanitarian gesture, but for several of the men, their time in Uruguay has been fraught with problems. They initially complained the government wasn't helping them enough and they also refused to get jobs, drawing criticism from Uruguayans. 
 
 Dhiab, who suffers several health problems related to hunger strikes he undertook while held at the U.S. military's Guantanamo base on Cuba, has been particularly vocal about his unhappiness in Uruguay. 
 
 Several weeks ago, Uruguayan media began reporting that he had left the country. Government officials said he had traveled to Brazil and insisted he had a right to do so. They said he had not broken any law and was not being sought. 
 
 However, last week the U.S. Embassy in Uruguay said American authorities were "collaborating" with Brazilian and Uruguayan authorities to locate Dhiab. 
 
 ___ 
 
 Associated Press writer Mauricio Savarese reported this story in Rio de Janeiro and AP writer Leonardo Haberkorn reported from Montevideo, Uruguay. 
 
 ___ 
 
 This story has been corrected to show that Avianca is based in Colombia. 

 A Syrian national who had been transferred to Uruguay has illegally entered the Brazilian territory, according to authorities 
 
 The Brazilian Federal Police is searching for a former Guantanamo Bay prisoner. Jihad Ahmed Mustafa Dhiad, a Syrian national who was living in Uruguay, has vanished and is believed to have entered the country without passing through border controls. Eduardo Bonomi, the Uruguayan Minister of Interior, has declared not knowing “which documents he used to cross the border,” and that his whereabouts are unknown since June 6. 
 
 Dhiab went to Uruguay in 2014 with five other Guantanamo Bay prisoners, as part of a deal between the U.S. and Uruguay to resettle detainees seen as posing little threat. According to American military documents, Dhiab was captured in Pakistan in 2002 for supposedly having connections to Al Qaeda. He spent 12 years in the top-security prison but was never formally charged. In 2014, the Syrian national launched hunger strikes to protest against his detention. 
 
 According to the Uruguayan media, Dhiab was never comfortable with his situation in Uruguay. He had already tried to enter Brazil legally once, but border authorities refused his entry. “If Brazilian authorities didn’t allow his legal entry, they can send Dhiab back to Uruguay. But that’s a problem for Brazil,” said the Uruguayan Minister of Interior. 
 
 Brazilian authorities, as well as the White House, have declined to comment on it.
– A South American airline is asking its employees to be on the lookout for a former Guantanamo Bay detainee who was resettled in Uruguay after being freed by US authorities, the AP reports. The alert about Syrian native Abu Wa'el Dhiab adds to a growing mystery about his whereabouts. Uruguayan authorities have insisted for weeks that he's visiting neighboring Brazil—though the Uruguayan interior minister says his exact location hasn't been known since June 6, per plus55.com—and that as a refugee he's entitled to leave Uruguay, but Brazil says there's no record of Dhiab entering the country. A rep for Colombia-based Avianca Airlines told the AP on Monday that the alert was issued internally, but he declined to give further details. The alert, published by the Argentine Web news portal Infobae, warns employees that Dhiab may be using a fake passport. The image of the alert posted by Infobae says the information came from Brazil's anti-terrorism police. Dhiab—who plus55 notes was nabbed in Pakistan in 2002 for supposed al-Qaeda ties—is one of six ex-Gitmo detainees resettled in Uruguay in late 2014, but some of the men initially complained the government wasn't helping them enough; they also refused to get jobs, drawing criticism from Uruguayans. Dhiab has been particularly vocal about his unhappiness there. Several weeks ago, Uruguayan media began reporting he'd left the country. Government officials said he'd traveled to Brazil, noting he hadn't broken any law and wasn't being sought. However, last week the US Embassy in Uruguay said US authorities were "collaborating" with Brazilian and Uruguayan authorities to locate Dhiab. Human rights activist Belela Herrera says it's "crazy" to use the word "terrorism" in relation to Dhiab, who was never charged by US officials and cleared for release. "He has a valid identity card, issued by the Uruguayan government, that allows him to go to other countries. He is not a fugitive from justice," Herrera tells the AP.