British author Alan Shadrake has been released from a Singaporean jail after serving five weeks for contempt of court, according to his lawyer.
Mr M Ravi said his 76-year-old client was deported and flying to London after his release.
Mr Shadrake's book is critical of Singapore's use of the death penalty for crimes such as drug trafficking.
He was jailed after Singapore's High Court ruled that passages in his book titled Once a Jolly Hangman: Singapore Justice in the Dock impugn the impartiality, integrity and independence of the judiciary.
Mr Shadrake was sentenced to six weeks in jail and an extra two weeks for failing to pay a 20,000 Singapore dollar (£10,212) fine.
Mr Ravi said he was released early for good behaviour.