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Mexican authorities have reportedly found three bodies in an area where two Australian brothers and their American travel companion were last seen.
Australian brothers Callum and Jake Robinson and American Jack Carter Rhoad have been missing since April 27.
It's understood the trio were on a camping trip in the Baja California region, near Ensenada.
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Two sources with knowledge of the investigation have confirmed the discovery, the Sydney Morning Herald reports.
All three men were due to check into Airbnb accommodation in Rosarito, but failed to arrive.
A local police commander previously told 9News he feared the three men had ventured too far out of Ensanada to a remote area.
The brothers were driving a white Chevrolet Colorado ute.
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A car matching the description of the Chevrolet Colorado ute has also been found burnt out on a nearby farm, in the Santo Tomas area.
Baja California Attorney General, María Elena Andrade Ramírez confirmed yesterday that three Mexican nationals had been arrested in connection to the case.
9News understands a woman was found to be in possession of one of the brothers' mobile phones, but it has not been confirmed which man.
It's understood she turned the phone on, which caused it to ping a local cell tower and allowed authorities to track her down.
A local police commander told 9News he feared the three men had ventured too far out of Ensanada to a remote area.
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Family and friends have been appealing for assistance using social media, which sparked the initial investigation by Mexican authorities.
Callum had been living in the US after following his dream to become a professional Lacrosse player and to represent Australia.
Jake left Australia just two weeks ago to visit his brother. He had been working as a doctor and was due to start a new job in Victoria.
Their parents Martin and Debra Robinson said yesterday they were "heading to the US/Mexico to be as close as possible to the area where they were last seen".
"We know the Callum and Jake are much loved," the Robinsons said.
"We thank everyone, especially the police, DFAT, Australian embassy staff and other authorities, for continuing the search to find the answers we desperately seek.
"We are heading to the US/Mexico to be as close as possible to the area where they were last seen.
"Callum and Jake are beautiful human beings. We love them so much and this breaks our heart."
The brothers had been to the Coachella music festival before heading to Mexico to surf.
More to come.
