Hungary's policy towards migrants is "unacceptable" and will not stop the flow of desperate people trying to reach Europe, the prime minister of neighboring Croatia, Zoran Milanovic, said Tuesday, according to AFP.

"For me Budapest's policy is totally unacceptable, from the human point of view," Milanovic said after visiting a migrant center in Croatia's east, close to the Serbian border.

"They (Hungary) are considering closing border crossings. But how will they stop people? Shoot at them? Deploy the army?"