Kalashnikov ammunition and Islamic State propaganda videos were seized in raids following the closure of a mosque in the Paris suburbs, French authorities said Sunday. A revolver and jihadist documents were also found during searches at the homes of the mosque leaders, Interior Minister Bernard Cazeneuve said previously. Police also found recordings of religious chants "glorifying the martyrs of jihad linked to the terrorist organisation Jabhat al-Nusra", the Syrian branch of Al-Qaeda, the prefecture added. The recordings were found among a wealth of teaching material for youngsters in an undeclared madrassa, or religious school.