Robbers killed seven worshippers in two mosques, including a leader of a local self-defense group, in northern Nigeria, which is witnessing unrest, as announced by the Kaduna State police. On Friday evening, a group of about ten members from a criminal gang arrived in the Ikara area and opened fire on worshippers at a mosque in the town of Saya-Saya, resulting in the death of six individuals, as stated by the state police spokesperson Mansour Hassan in a statement.