An aerial view of a flooded neighbourhood is seen in Acapulco, México. September 17, 2013.

People wait as a helicopter lands on a collapsed road in Coyuca de Benitez, about 35 km (22 miles) from Acapulco, México. September 17, 2013.

Pictures hang on a wall stained with watermarks showing the level floodwaters rose to, inside a house in San Cristobal Sola de Vega in Oaxaca state, México. September 16, 2013.

A man stands amid smoke and debris after riot police used tear gas and water cannon to disperse demonstrators on the Zocalo in Mexico City. September 13, 2013.

People confront riot policemen who are trying to arrest a protester in downtown Mexico City. September 13, 2013.

A combination photo shows the capsized cruise liner Costa Concordia during and at the end of (bottom R) the «parbuckling» operation outside Giglio harbour, Italy. September 17, 2013.

Miss America contestant, Miss New York Nina Davuluri (C) celebrates after being chosen winner of the 2014 Miss America Pageant in Atlantic City, New Jersey, USA. September 15, 2013.

French artist David Guetta performs at the Rock in Rio Music Festival in Rio de Janeiro, Brazil. September 13, 2013.

An employee stands near the space suits of U.S. astronaut Michael Hopkins, Russian cosmonauts Oleg Kotov and Sergey Ryazanskiy at the Baikonur cosmodrome, Kazakhstan. September 14, 2013.

Devotees carry an idol of Hindu elephant god Ganesh, the deity of prosperity, during a procession through the streets before immersing it in the waters of the Arabian Sea on the last day of the Ganesh Chaturthi festival in Mumbai, India. September 18, 2013.

A devotee carries an idol of the Hindu elephant god Ganesh, the deity of prosperity, for its immersion in the waters of Yamuna river on the last day of the Ganesh Chaturthi festival in New Delhi, India. September 18, 2013.

Displaced women carry food aid in Agok, in the Abyei region, South Sudan. September 13, 2013.

Honda MotoGP rider Marc Marquez of Spain takes a curve during the third free practice session of the San Marino Grand Prix in Misano circuit in central Italy. September 14, 2013.

A man rides a motorcycle carrying his children along the top of a dam which is flooded by an overflowing river near Junyue township of Pengzhou, Sichuan province, China. September 12, 2013.

Women dressed as sirens perform from inside a tank to school children (not pictured) at the Sao Paulo Aquarium, Brazil. September 17, 2013.