Journalist and blogger Shahram Manouchehri was arrested this week by Iranian authorities, the latest casualty of a new crackdown on media activists.

The Human Rights Reporters of Iran reports that Manouchehri has been taken to an undetermined location, his home has been raided, and his books and documents have been confiscated.

Shahram Manouchehri, who worked for reformist publications and dailies, had been arrested in the post-election protests of 2009 and released on bail.

Shahrami is now the fifth journalist to be arrested in recent days in Iran.

Previously, Peymon Pakmehr, Sahameddin Bourghani, Parastoo Dokouhaki and Marzieh Rasouli, who are all journalists, were arrested by authorities.

Earlier this month, another three journalists — Ehsan Houshmand, Fatemeh Kheradmand and Hassan Fathi — were also arrested.

Reporters Without Borders has written to UN Human Rights Commissioner Navi Pillay urging action against the rise of journalist incarceration in Iran.