Iran has been accused of torturing to death a blogger who was arrested last week for criticising the Islamic republic on Facebook. Iran's cyber-police, known as Fata, picked up Sattar Beheshti from his home in Robat-Karim last week on suspicion of "acting against the national security" because of his online activities on social networking sites. He was then taken to Tehran's notorious Evin prison. Beheshti's family heard no news of him until Wednesday, when they were phoned by prison officials asking them to collect his body from the Kahrizak coroner's office. The opposition has accused Iranian officials of torturing the 35-year-old blogger to death.