Washington, November 3: Guy Ritchie has found himself in the hit list of his estranged wife Madonna’s “biggest” fan, who has reportedly threatened to kill him.

The 40-year-old filmmaker had to call in security on the sets of his upcoming flick ‘Sherlock Holmes’ after a rampant fan “devoted” to the ‘Queen of Pop’ allegedly started waving a 12-inch blade in search of the director.

According to Britain''s Sunday Mirror newspaper, as the teen was being towed away, he yelled “I''m Madonna''s biggest fan! Where''s Guy? I''m going to kill him!”, according to reports.

“The bloke was screaming about Guy and shouting, ''I love Madonna''. It was terrifying. At first it seemed like a sick joke but it was soon obvious the knifeman was not messing around,” Contactmusic quoted a source as saying.

"Luckily there were four security guards and two policemen who were able to overpower him. Guy was understandably upset, but carried on as if nothing had happened,” the source added.

The incident comes after the couple’s announcement to divorce last month, following which Guy has been intimidated by Madonna-obsessed fans. (ANI)