AlHijjah 20, 1436, October 04, 2015, SPA -- US President Barack Obama extends condolences over the killing of medical professionals and other civilians at a Doctors Without Borders hospital in Kunduz, Afghanistan, according to dpa. Calling it "tragic incident," Obama said in a statement issued by the White House that the Department of Defense has launched a full investigation. "We will await the results of that inquiry before making a definitive judgment as to the circumstances of this tragedy," Obama says. The US president says he and his wife, Michelle, offer their thoughts and prayers to all of the civilians affected by the incident, their families and loved-ones, the statement says.