The news falls in line with reports from Variety last week that stated producers at 20th Century Fox, New Regency and Graham King said filming was suspended because of Singer's "unexpected unavailability".
Bohemian Rhapsody, the most recent draft of which hails from Academy Award-nominated scribe Anthony McCarten (The Theory of Everything), will tell the story of Mercury, played by Rami Malek (Mr. Robot) and his iconic rock band, Queen.
The studio fired him under the pay or play provision in his deal because of a pattern of behavior on the set proved so unreliable that it was best to drop him.
According to THR, and sources associated with filming, it was Singer's constant absence and unreliability during production that led to the film's star, Rami Malek, to complain to the studio, "charging Singer with not being present on set, unreliability and unprofessionalism". Cinematographer Thomas Newton Sigel repeatedly had to step in to film on the days that Singer was a no-show. The new filmmaker will complete the final two weeks of principal photography. The 52-year-old had previously directed The Usual Suspects, four X-Men movies and Superman Returns, among others. Fox is hoping to keep the film on track for a December 2018 release.
This is not the first time Singer went missing during a production.
Bohemian Rhapsody is set to hit theaters on December 25, 2018. Bustle has reached out to reps for Singer for comment, but did not immediately hear back.