Facebook announced on thursday that it has banned an Israeli company that was attempting to run influence campaigns aimed at disrupting elections in various countries and has cancelled dozens of accounts engaged in spreading disinformation.

Despite efforts to hide its’ own identity facebook has named the Archimedes Group,a Tel Aviv-based political consulting and lobbying firm as the alleged culprits of a number of disinformation campaigns primarily aimed at influencing people in Nigeria, Senegal, Togo, Angola, Niger and Tunisia.

Nathaniel Gleicher, Facebook's head of cybersecurity policy, told reporters that the tech giant had purged 65 Israeli accounts, 161 pages, dozens of groups and four Instagram accounts.