An employee looks at the propeller of a Scorpene submarine at the industrial site of the naval defence company and shipbuilder DCNS in La Montagne near Nantes, France, April 26, 2016. REUTERS/Stephane Mahe/File Photo

An employee looks at the propeller of a Scorpene submarine at the industrial site of the naval defence company and shipbuilder DCNS in La Montagne near Nantes, France, April 26, 2016. REUTERS/Stephane Mahe/File Photo

An employee looks at the propeller of a Scorpene submarine at the industrial site of the naval defence company and shipbuilder DCNS in La Montagne near Nantes, France, April 26, 2016. REUTERS/Stephane Mahe/File Photo

August 24, 2016 3:29 AM (UTC+8)