France BEA's aviation investigators said on Friday a second black box recovered from the Germanwings crash site indicated that the co-pilot deliberately crashed the airplane.
"A first reading shows that the pilot in the cockpit used the automatic pilot to put the airplane on a descent towards an altitude of 100 feet," the BEA investigation office said in a statement.
"Then several times the pilot modified the automatic pilot settings to increase the speed of the airplane as it descended," it added.