Streams of refugees flow into Macedonia from Greece

Hundreds pass through the border unhindered as police allow groups to enter Macedonia a day after violent clashes.

Hundreds of refugees have passed through the Macedonian border from Greece unhindered a day after police used stun grenades in a failed bid to prevent them from crossing.

Al Jazeera's Andrew Simmons, reporting from Gevgelija on the Macedonian side of the border, said the refugees were boarding trains to take them from Macedonia to Serbia.

The refugees hope that by taking trains through Serbia, they will make it to Hungary and other EU member states.

We are humans. We are not animals. We ran away from death and came here to die from the border police? Syrian refugee on the border

Al Jazeera's Jonah Hull, reporting from Idomeni on the Greek side of the border, said the railway between the two nations was working again on Sunday.

"It is calm here. There is a free flow of movement as the Macedonian police allow small groups through," he said.

"There are lines and lines of refugees making their way to this point and there is no sign in the bigger picture that this flow is going to stop or slow down anytime soon."

Police and security remained at the border on Sunday, checking the refugees belongings and bags as they allowed them to pass through.

"Heavy diggers at work are essentially clearing the ground alongside these railway tracks where over 2-3 acres are covered with human waste, abandoned tents, abandoned bags, clothing, children's toys, and empty bottles of water," Hull said.