Workers at two factories in Iran are reported to have protested their employment conditions in recent days, RFE/RL's Radio Farda reports.
The protests drew in workers of the Alborz tire factory near Tehran and a major petrochemical plant in the northern city of Tabriz.
A labor activist in Tehran who spoke on condition of anonymity told RFE/RL that several Alborz workers gathered in front of the factory on March 2 to protest unpaid wages.
This followed a protest at the plant two days earlier, when hundreds of workers along with their families gathered in front of the factory, according to the opposition website Sahamnews.
And on February 26, according to the Iranian Free Labor Union, over 300 Alborz workers held a protest rally in front of the district office of Chahar Dang to demand immediate attention be paid to their situation.
The factory has seen frequent protests and strikes in recent years over unpaid wages.
Meanwhile, the Iranian Labor News Agency (ILNA) reported on March 2 that about 1,800 contractors of the Tabriz petrochemical plant protested against the management's decision not to renew their contracts.
Some unofficial reports suggest the workers also demanded an increase in their wages as well as benefits such as health insurance.