LONDON - An Iranian man who received death threats due to his anti-government blog died in custody, possibly as a result of torture, Amnesty International said on Thursday.

The human rights group and European governments urged Tehran to investigate the death of Sattar Beheshti, 35, who was arrested in his home southwest of the capital on Oct. 28 and whose body was handed back to his family on Wednesday.

"Fears that Sattar Beheshti died as a result of torture in an Iranian detention facility, after apparently lodging a complaint about torture are very plausible, given Iran's track record when it comes to deaths in custody," Amnesty said.

Beheshti was not well known in a country where media is tightly controlled and blogging has become one of the few outlets - albeit a risky one - for criticizing the state.

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