source: Whatsapp; Telegram
actor1: Islamic State (West Africa) - Greater Sahara Faction
actor2: Police Forces of Nigeria (2015-)
location: Balle
notes: On 1 October 2019, ISGS militants crossed the border into Nigeria and attacked a Nigerian security force position in Balle (Gudu, Sokoto). Prisoners were reportedly liberated and a vehicle was seized in the attack. Islamic State stated in a claim of responsibility that an unspecified number of soldiers were killed and wounded, although fatalities could not be independently verified.