Mirtahmasb was one of six directors seized on charges that they worked for BBC Persian.
1630 GMT: Surveillance Watch. Huawei Technologies, a leading Chinese manufacturer of telecommunications equipment, has said on its website that it will voluntarily restrict business in Iran because of the “increasingly complex situation” there.
Huawei declared it will not seek new customers will limit business activities with existing clients.
The company did not give a reason for the the pull-back but it has come under pressure on the Internet for the potential use of its technology for repression.