David Cameron accused Boris Johnson of 'ruining my bloody career', according to the diaries of a former minister.

The former prime minister and ex-Witney MP, who has a family home in Dean, near Chipping Norton, apparently came out with the outburst shortly before Mr Johnson's successful campaign to replace Theresa May in Downing Street.

The incident on May 1 2019 is revealed in former Foreign Office minister Sir Alan Duncan’s memoirs, In The Thick Of It, which are being serialised in the Daily Mail.

The entry reads: 'Breakfast with David Cameron. He is so glad not to be in the middle of everything that is going on at the moment.

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“He has a very straightforward opinion about Boris – 'He ruined my bloody career'.”

The breakfast took place three weeks before Mrs May was forced to resign after Mr Johnson plotted to bring her down, reported the Daily Mail.

Within two months, he succeeded her in No 10.

Three years earlier, Mr Cameron stepped down as prime minister after losing the 2016 EU referendum.

Mr Johnson's Brexit victory came after a series of attacks on Mr Cameron.

Mr Cameron is currently involved in a deepening row over links to scandal-hit banker Lex Greensill.