Peacekeepers: 22 Killed in Attack on C.Africa MSF Hospitalby Naharnet Newsdesk 28 April 2014, 11:39At least 22 people including three staff members of medical charity Medecins Sans Frontieres were killed during a weekend attack by gunmen on a Central African hospital, in the latest atrocity to hit the violence-plagued country.The brutal attack in the northwest was blamed on the mostly Muslim rebel