Police in Mexico are desperately searching for two Australian tourists and one American who went missing during a surfing trip.
Brothers Jake and Callum Robinson, from Perth, were travelling with American tourist Jack Carter Rhoad when they disappeared in northern Mexico.
The trio were believed to have been staying at the popular surfing spot Punta San Jose, near the city of Ensenada, but they then failed to arrive at accommodation in the city of Rosarito.
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Debra Robinson, the mom of the two brothers, appealed for information on social media as she revealed the family has not heard from the brothers since 27 April.
"Callum is a Type 1 diabetic so there is also a medical concern," she wrote. "Please contact me if you have seen them or know their whereabouts."
Police in Mexico got involved in the search for the three men after social media posts surfaced about their disappearance.
In a press conference on 2 May, Baja California State Attorney General Maria Elena Andrade said authorities lost 'very important time' between when the men were last seen and when the search began, but three people have now been arrested in connection with the case.
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One of the people arrested has been identified as a 23-year-old woman from Mexico, as well as two men also from Mexico.
Andrade commented: "A working team [of investigators] is at the site where [the tourists] were last seen, where tents and other evidence was found that could be linked to these three people we have under investigation.
"There is a lot of important information that we can't make public."
Jorge Argoud, the operational deputy director of security in Ensenada, told reporters that authorities had located 'a cell phone apparently belonging to one of the missing persons' during the search, as well as a burned-out vehicle linked to the missing tourists.
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Local media has reported that the phone found in the search belonged to one of the brothers, and that it was found in the possession of the woman who has been arrested.
Police were able to use the GPS on the phone to find the suspect, who was allegedly also found to have drugs in her possession.
Further reports from local media suggest blood was discovered in the area where the tents were located.
Prime Minister Anthony Albanese has described the situation as 'concerning' as he confirmed that the embassy in Mexico is working with local authorities to 'try to ascertain what has happened here.'
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"We hope that these brothers are found safely but there is real concern about the fact that they've gone missing," he said.
Topics: Australia, Crime, Mexico, US News, World News