Iran's state TV is reporting that the country's Foreign Ministry has summoned the Nigerian Charge d'Affaires to protest the killing of Shiite Muslims in northern Nigeria.

The broadcast says a senior Foreign Ministry official condemned the killings and said the Nigerian government is responsible to protect Shiite Muslim lives and properties. Iran is the world's largest Shiite Muslim state.

Nigerian soldiers raided the home of Ibraheem Zakzaky, leader of the Shiite Islamic Movement, this weekend in Zaria, a town in northern Nigeria. The movement says soldiers killed hundreds of Shiite Muslims after their group stoned the convoy of Nigeria's army chief. Other reports put the number of dead at about 20.