Factory chimneys are seen at Keihin industrial zone in Kawasaki, south of Tokyo, Japan, August 18, 2016. REUTERS/Kim Kyung-Hoon

A bicycle rider rides past a factory at Keihin industrial zone in Kawasaki, south of Tokyo, Japan, August 18, 2016. REUTERS/Kim Kyung-Hoon

An aerial view shows makeshift shelters and tents where migrants live in what is known as the "Jungle", along the Rocade road, an approach road to the French port of Calais, France, September 7, 2016. Picture taken September 7, 2016. REUTERS/Charles Platiau

Police stop a man during a curfew in Bengaluru, following violent protests after India's Supreme Court ordered Karnataka state to release water from the Cauvery river to the neighbouring state of Tamil Nadu, India, September 13, 2016. REUTERS/Abhishek N. Chinnappa/File Photo

Members of the security forces make their way past burning lorries in Bengaluru, which were set on fire by protesters after India's Supreme Court ordered Karnataka state to release 12,000 cubic feet of water per second every day from the Cauvery river to neighbouring Tamil Nadu, India September 12, 2016. REUTERS/Abhishek N. Chinnappa

A motorist rides a bike on an empty road on the day of a state-wide strike called by various organisations to protest against a Supreme Court order asking Karnataka to release water from the river Cauvery to the neighbouring state of Tamil Nadu, in Bengaluru, September 9, 2016. REUTERS/Abhishek N. Chinnappa

A municipal worker sweeps around the charred remains of a lorry set ablaze during the violent protests after India's Supreme Court ordered Karnataka state to release water from the Cauvery river to the neighboring state of Tamil Nadu, in Bengaluru, India, September 14, 2016. REUTERS/Abhishek N. Chinnappa

Men ride a motorcycle past a lorry in Bengaluru, which was set on fire by protesters after India's Supreme Court ordered Karnataka state to release 12,000 cubic feet of water per second every day from the Cauvery river to neighbouring Tamil Nadu, India September 12, 2016. REUTERS/Abhishek N. Chinnappa