Students take cover from a riot police water cannon during a protest against the country's educational system, in Santiago, Chile. (AFP)

From left: Afghanistan's President Hamid Karzai, Tajikistan's President Emomali Rakhmon, Russian President Dmitry Medvedev and Pakistan's President Asif Ali Zardari walk away after posing for a picture at a residence outside Dushanbe, Takjik capital. The leaders of the four nations gathered to discuss reconstruction in Afghanistan and the joint fight against drug trafficking and terrorism. (AP)

A huge fish-shape installation formed by more than 2,500 lanterns as part of the celebration of the mid-autumn festival in Hong Kong. (AP)

A Hindu devotee offers milk to a snake as part of a ritual on Naag Panchami festival in Jammu. The Hindu festival of Naag Panchami is a day dedicated to snake worship. (AP)

A priest blesses a barrel of beer, as members of the Knighthood of the Brewers' Mashstaff take part in celebrations of Saint-Arnould, patron saint of brewers, during a mass at the Sint-Gudule Cathedral in Brussels, Belgium. (Reuters)

Visitors walk past the Panasonic booth at IFA, one of the world's largest trade fairs for consumer electronics and electrical home appliances in Berlin, Germany. (AP)

A view of the Mae West Room by Salvador Dali at a presentation of a new exhibition of his work at Moscow's Pushkin, Russia. The exhibition is part of a cultural exchange between Russia and Spain taking place this year. (Reuters)

USA's Dwight Phillips competes on his way to winning the gold medal in the Men's Long Jump final at the World Athletics Championships in Daegu, South Korea. (AP)

Two-month-old Sumatran tiger cubs play in Prague zoo, Czech Republic. (Reuters)

British actress Kate Winslet arrives for the premiere of the TV Series Mildred Pierce at the 68th edition of the Venice Film Festival in Venice, Italy. (AP)