Dhaka, Jan. 11 -- A mosque and a police station were set on fire in Iran as nationwide protests over economic hardship turned increasingly violent, with state media reporting that more than 100 members of the police and security forces have been killed since the unrest began.

Iran's state television said on Sunday that 30 police and security personnel were killed in Isfahan province and six others in Kermanshah in the latest clashes. The semi official Tasnim news agency reported that a total of 109 security officers have died across the country during the protests.

State media also said a mosque was set on fire in the northeastern city of Mashhad on Saturday night, while a police station was torched during clashes in Tehran, according t...