Buses that transported refugees from the south of Serbia to the north of Vojvodina and the border with Hungary were diverted to Šid and the border with Croatia, the Belgrade media reported on Tuesday evening.
Reporter TV station B92, located in the southern Serbian town of Preševo, one driver confirmed that all refugees were transporting to Šidu.
There are several buses on the station, where the name of the town on the border with Croatia is written as the final destination, B92 states.
The internet portal Blic reports that at present there are at least some 20 buses on the Preševo bus, which are written by "Šid" and "Croatia".
The dramatic changes in the refugee route occurred after the border crossings between Serbia and Hungary were closed on Tuesday, and hundreds of refugees were captured in the border area, according to Belgrade media.
The Hungarian government has announced that it will begin preparations to extend the wire fence at the border with Serbia to the east towards Romania, in the case that migrants decide to set off another route to its territory.
Blic and B92 write that drivers are told not to stop until the refugees move to the border with Croatia, while police all the buses eventually heading to Hungary cross the border to Croatia.
Serbian Radio-Television (RTS) reported that a reception center near the Sot-Principovac crossing was already set up in Šid municipality.
After Hungary decided to close its borders, the Facebook group called itself "Aviod Hungary - Migration news" prepared leaflets with alternative routes shared by refugees at the Macedonian-Serbian border, regional media reported earlier.
Serbian Foreign Minister Ivica Dačić assessed on Tuesday in Prague "unacceptable" return of migrants to Serbia, pointing out that Schengen countries are creating problems in Serbia.
"Serbia is not a collection center," Dacic said, adding that she "wants to be part of a solution rather than a collateral damage," the Reuters agency said.
Serbia, Dačić continues, can not fight alone with the migration crisis and will next be sure to be talks with Brussels and other EU members on the following days.
Dacic stressed that Serbia, which is not a member of the EU, has been "stuck between two parts of the EU that do not cooperate and have different policies".