Andrew Lebovich , who has followed the evolution of both groups , says Ansaru broke away from Boko Haram a year ago and `` has since become known for its similarities and suspected links to AQIM and allied groups such as the Movement for Tawhid and Jihad in West Africa ( MUJAO ) . '' four Islamic family members abducted in Nigeria . Westerners are targets for militants , criminal groups . Militants groups Ansaru , Ansaru emerged in northern Cameroon .
four Islamic family members abducted in Nigeria . Westerners are targets for militants , criminal groups . Militants groups Ansaru , Ansaru emerged in northern Cameroon .