More than 20 busloads of migrants arrived at Croatia's northeastern frontier with Hungary on Friday where more than 250 Hungarian police and soldiers were deployed, an AFP correspondent said.

According to an AFP count, there were around 22 buses, each of which was carrying about 60 people.

As they got off, they were met by around 200 Hungarian police and 50 soldiers tasked with guarding the border which Budapest wants closed to migrants.