At the Munich Olympic Games , Black September kidnapped and killed eleven Israeli athletes . A number of sources , including Mohammed Oudeh ( '' Abu Daoud '' ) , one of the masterminds of the Munich massacre , and Benny Morris , a prominent Israeli historian , have stated that Black September was an armed branch of Fatah used for paramilitary operations . According to Abu Daoud 's 1999 book , " Arafat was briefed on plans for the Munich hostage-taking . " The killings were internationally condemned . In 1973 – 74 , Arafat closed Black September down , ordering the PLO to withdraw from acts of violence outside Israel , the West Bank and Gaza Strip
Munich massacre
Munich massacre
Yasser Arafat