Iranian authorities have shut down mobile internet access to overseas sites in several provinces, an Iranian news agency reported on Wednesday, a day before new protests called for on social media.

Social media posts and some relatives of people killed in unrest last month over hikes in gasoline prices have called for renewed protests and commemoration ceremonies for the dead on Thursday. The semi-official news agency ILNA quoted an informed source at the Communications and Information Technology Ministry as saying the shutdown was ordered by "security authorities" and covered the Alborz, Kurdestan and Zanjan provinces in central and western Iran and Fars in the south.

"According to this source, it is possible that more provinces will be affected by the shutdown of mobile international connectivity," ILNA said.