Scott appeared to have committed suicide on Sunday (August 19) by jumping off the Vincent Thomas Bridge in Los Angeles. He was 68.
It was later claimed that Scott suffered from inoperable brain cancer, a story which the Top Gun helmer's family has described as "absolutely false".
TMZ reports that no evidence of cancer was found during initial postmortem testing, though an official autopsy has been deferred.
A source also told the website that Scott's wife has insisted that he had no serious medical issues which would have led him to take his life.
Tom Cruise has joined those who have paid tribute to Scott following his death, describing him as a "creative visionary".
Watch Digital Spy interview Tony Scott about Unstoppable in 2010 below:
Photo gallery - Tony Scott filmography in pictures:
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