George Martin dies: Tributes from David Cameron and John Lennon's son following death of 'fifth Beatle'

Tributes have poured in from across the world following the death of legendary music producer Sir George Martin, who recorded many of The Beatles greatest tracks. Politicians including British Prime Minister David Cameron, fellow producers such as Mark Ronson and John Lennon's son Sean Ono Lennon have led the messages of condolences.

"Sir George Martin was a giant of music – working with the Fab Four to create the world's most enduring pop music," the British prime minister posted on Twitter following reports of the prolific producer's death.

Ringo Starr broke the news in the early hours of the morning (9 March)."God bless George Martin peace and love to Judy and his family love Ringo and Barbara. George will be missed xxx," The Beatles drummer wrote from the US.

In a message of tribute Mark Ronson referred to Martin as "The greatest British record producer of all time." He added: "We will never stop living in the world you helped create."

In a statement, the Universal Music group has confirmed Martin's death following a career spanning five decades. However, the reason for his death was not immediately clear.

The prolific producer and songwriter from north London worked on more than 700 records during his life. A classically trained musician he produced jazz and classical music as well as a slew of pop stars.

Martin won a number of Grammy awards and received an Academy Award for the score to A Hard Day's Night. He received a knighthood in 1996 and in and was inducted into the Rock and Roll Hall of Fame in 1999.