Nairobi , Kenya ( CNN ) -- A plane crash in Kenya on Wednesday killed four people , emergency workers said . The crash occurred in the country 's Maasai Mara national park , said Sean Culligan , chief operations officer for Flying Doctors , which is assisting in the response . Two Kenyan pilots and two Germans were killed , according to emergency workers . In Washington , a State Department spokeswoman said Americans also were on the plane . `` We can confirm that four U.S. citizens were injured in a plane crash today in Kenya , '' Laura Seal said . `` Officials from the U.S. Embassy in Nairobi are providing appropriate consular assistance . Due to privacy considerations , we can not provide further details . '' Flying Doctors is a Nairobi-based charity that evacuates people from medical emergencies in East Africa and does air ambulance transfers between medical facilities . It also flies doctors to remote areas to provide health care . The charity has been operating since 1957 . CNN 's Jamie Crawford contributed to this report .
Two Kenyans and two Germans were killed in the crash . Four U.S. citizens also were on board , the U.S. State Department says . The State Department did not release further details .