Belgrade

A seal cools off at Belgrade Zoo during a heatwave on Tuesday. In Serbia where the meteoalarm has been raised to 'red', extremely hot weather with temperatures up to 39 degrees Celsius is expected to continue over the next several days

Andrej Isakovic/AFP

A seal cools off at Belgrade Zoo during a heatwave on Tuesday. In Serbia where the meteoalarm has been raised to ‘red’, extremely hot weather with temperatures up to 39 degrees Celsius

Migrants sleep at the main railway stati...Migrants sleep at the main railway station in Belgrade, on July 13, 2015. Migrants cross Serbia to join other European countries, as it has land borders with three EU countries - Romania, Hungary and Croatia. The estimated number of people crossing the Serbia-Hungary border has increased more than 25-fold, rising from 2,370 to 60,602 according to an Amnesty International report

Dimitar Dilkoff/AFP

Migrants sleep at the main railway station in Belgrade, on Monday. Migrants cross Serbia to join other European countries, as it has land borders with three EU countries – Romania, Hungary and Croatia

A woman hangs a red blanket out of her window in Belgrade on March 14, 2014. Serbs will vote in snap polls on March 16 with the ruling Serbian Progressive Party (SNS) tipped to capitalize on a wave of public support after opening membership talks with the European Union. Some 6.7 million voters will elect new deputies for the 250-seat parliament in early legislative elections called by the SNS after Brussels opened accession talks with the Balkan country on January 21.

Andrej Isakovic/AFP

A woman hangs a red blanket out of her window in Belgrade, Serbia. Serbs will vote in snap polls on Sunday with the ruling Serbian Progressive party tipped to capitalise on a wave of public support after opening membership talks with the EU