SITE Intelligence Group reports Boko Haram, which joined the Islamic State group in March, has killed and injured more than 1,000 people between Oct. 14 and Dec. 12.
Based in Nigeria, Boko Haram has expanded its attacks into Cameroon, Niger and Chad, countries contributing to a regional force to wipe out the extremists.
The IS graphic says its West African branch has staged 67 suicide attacks and fired more than 120 rockets.
SITE says the data for the infographic posted on Saturday on Twitter and Telegram was apparently collected from media reports