What happened to Dom Phillips?
DOM PHILLIPS is a journalist who vanished in a remote area of the Amazonian rainforest.
But where was he last seen, and what has his sister said? Here's all you need to know.
Who is Dom Phillips?
Dom Phillips is a Brazilian indigenous affairs expert and longtime contributor to the Guardian newspaper.
The 57-year-old is working on a book on the environment, supported by a grant from the Alicia Patterson Foundation.
He's based in Salvador, the capital of the northeastern state of Bahia in Brazil.
He's been reporting on Brazil for over 15 years for various newspapers including the Guardian and the New York Times.
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What happened to Dom Phillips?
Dom went missing on Sunday, June 6, 2022, while he was passing through the Javari region of Amazonas state with indigenous expert Bruno Araújo Pereira.
His guide Bruno, who is a former government official tasked with protecting uncontacted tribes, is said to have received a number of threats from miners and loggers in the area.
The region is well known for illegal mining.
On Monday, June 7, 2022, the alarm was raised by indigenous leaders, , and they called for an urgent search for the two men.
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In a statement, Dom's wife Alessandra Sampaio said: "Brazilian authorities, our families are in despair. Please answer the urgency of the moment with urgent actions.
“As I make this appeal they have been missing for more than 30 hours … [and] in the forest every second counts, every second could be the difference between life and death."
“All I can do is pray that Dom and Bruno [Araújo Pereira] are well, somewhere, and unable to continue with their journey because of some mechanical problem, and that all this will end up being just another story in these full lives of theirs.”
Where was Dom Phillips last seen?
In the statement, the group, called Univaja, said the men arrived by boat at an area known as the Lago do Jaburu, on Friday, June 3, 2022.
They're then thought to have begun their return to Atalaia do Norte by river at 6am on Sunday, June 5, 2022.
It shouldn't have taken them longer than three hours, and a search launched when they didn't arrive.
What has Dom Phillips' sister Sian said?
Dom's sister Sian Phillips also made an impassioned plea to the authorities, and warned that "every minute counts" in the search for them.
In a video posted on social media she said: "We are really worried about him and urge the authorities in Brazil to do all they can, search the route he was following.
"If anyone can help scale up resources available for the search, that would be great, because time is crucial.
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"Here in the UK, my other brother and I are desperately worried.
She added: "We love our brother and want him and his Brazilian guide Bruno Pereira found. Every minute counts."