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Police stand guard as migrants sit on the platform of Keleti station after it was reopened this morning in central Budapest on September 3, 2015 in Budapest, Hungary. Although the station has reopened all international trains to Western Europe have bee cancelled. According to the Hungarian authorities a record number of migrants from many parts of the Middle East, Africa and Asia are crossing the border from Serbia. Since the beginning of 2015 the number of migrants using the so-called Balkans route has exploded with migrants arriving in Greece from Turkey and then travelling on through Macedonia and Serbia before entering the EU via Hungary. The massive increase, said to be the largest migration of people since World War II, led Hungarian Prime Minister Victor Orban to order Hungary's army to build a steel and barbed wire security barrier along its entire border with Serbia, after more than 100,000 asylum seekers from a variety of countries and war zones entered the country so far this year.
Police stand guard as migrants sit on the platform of Keleti station after it was reopened this morning in central Budapest on September 3, 2015 in Budapest, Hungary. Although the station has reopened all international trains to Western Europe have bee cancelled. According to the Hungarian authorities a record number of migrants from many parts of the Middle East, Africa and Asia are crossing the border from Serbia. Since the beginning of 2015 the number of migrants using the so-called Balkans route has exploded with migrants arriving in Greece from Turkey and then travelling on through Macedonia and Serbia before entering the EU via Hungary. The massive increase, said to be the largest migration of people since World War II, led Hungarian Prime Minister Victor Orban to order Hungary's army to build a steel and barbed wire security barrier along its entire border with Serbia, after more than 100,000 asylum seekers from a variety of countries and war zones entered the country so far this year.

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Chaos as migrants forced off trains in Hungary

The crisis continues in Europe, as migrants flood the continent. CNN's Frederik Pleitgen reports from Hungary where an overflow of refugees attempt to escape a hopeless situation.

Chaos as migrants forced off trains in Hungary

The crisis continues in Europe, as migrants flood the continent. CNN's Frederik Pleitgen reports from Hungary where an overflow of refugees attempt to escape a hopeless situation.