A sound mixer working on a Tom Hanks feature has died after falling from a balcony on the set of his new film about children's television presenter Fred Rogers.
Emmy-winning James Emswiller, who has worked on films such as The Avengers and The Fault In Our Stars, appeared to fall from a balcony in Mount Lebanon, Pennsylvania, during a mid-shoot break, according to police.
Witnesses told officers the 61-year-old "was alone on the balcony taking a cigarette break when he may have suffered a medical emergency resulting in his fall from the balcony".
Police said initial reports did not indicate any "foul play".
According to local media, Emswiller was taken to hospital but died shortly afterwards.
Work on the film, provisionally titled You Are My Friend, came to a halt while police carried out their investigation.
The film centres on the creator of the popular American children's show Mister Rogers' Neighbourhood, which aired from 1968 until 2001.
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Sony Pictures/Tri-Star Pictures told USA Today: "This is a devastating tragedy and the studio is investigating the matter.
"Our thoughts and prayers are with Jim's loved ones, friends, and colleagues."