Iran’s authorities have restricted mobile internet access in several provinces, an Iranian news agency reported on Wednesday, a day before new protests were expected to kick off following calls for demonstrations on social media.

Social media posts, along with some relatives of people killed in unrest last month, have called for renewed protests and for ceremonies to commemorate the dead to be held on Thursday.

State media, meanwhile, said intelligence ministry agents had seized a cache of 126 mostly U.S.-made guns smuggled to the central city of Isfahan from abroad.

The protests were initially sparked in November by hikes in gasoline prices but demonstrators quickly expanded their demands to cover calls for more political freedom and other issues.