Around 15-hundred refugees are stranded at the crossing.
Men, women and children have been seen running away from police, and a pregnant woman's been stretchered from the scene.
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Water cannon has also been used on the migrants.
It comes after Hungary sealed its southern border with Serbia, cutting off one of the biggest entry points for migrants into the EU.
Meanwhile, a spokesman for the International Red Cross, Stephen Ryan has described the current situation on the Serbian border as one of 'extreme concern'.