The Icelandic composer was found dead at his apartment in Berlin, according to The Guardian.
No additional detail about his death is available till now.
Tim Husom, his Los Angeles manager, has confirmed the news and said that Berlin authorities are investigating his death.
Johannsson won a Golden Globe and received an Academy Award nomination for his score for the James Marsh-directed film "The Theory of Everything", starring Eddie Redmayne as celebrated theoretical physicist Stephen Hawking.
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Johannsson had frequently collaborated with Villeneuve, providing background score to his films "Arrival" and "Prisoners".
Redbird Music Management, the company that represents the Icelandic composer, also announced his death on Facebook.
"It is with profound sadness that we confirm the passing of our dear friend Johann Johannsson.
"We have lost one of the most talented and brilliant people who we had the privilege of knowing and working with. May his music continue to inspire us," the post read.
In addition to his film scores, Johannsson had a career as a solo musician and composed music for theatre, dance and television. His first solo album, 'Englaborn', was released in 2002.
He is survived by his parents, sisters and daughter.
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