From NY Times:

State television also reported that the government had arrested five members of the family of Ali Akbar Hashemi Rafsanjani, the former president who heads two influential councils in Iran, a move that escalates the government’s crackdown against the reform movement.
Mr. Rafsanjani, one of the fathers of the revolution, has been locked in a power struggle with Iran’s supreme leader, Ayatollah Ali Khamenei, and worked closely with the reform movement during the presidential election. The televison report identified two of those arrested as Mr. Rafsanjani’s daughter, Faezeh Hashemi, as well as her own daughter. . . .
With police on the streets demonstrating a willingness to injure and even kill, one question political analysts and opposition members were beginning to ask was whether it was time to shift strategies, from street protests to some kind of national strike. It was unclear if the opposition had the support or organization, especially within the middle class, to carry out such a measure, but a strike would be immune to the heavy hand of the state and could wield leverage by crippling the already stumbling economy, analysts said.