A group of migrants attempting to enter Hungary illegally threw rocks at police officers at Kunbaja, at the Serbian border, on Wednesday morning, according to police.hu. The incident involving 15 migrants occurred at 3.45am, Bács-Kiskun County police said in a statement. The migrants threw the rocks over the border fence, damaging a police car. No injuries were reported. Similar incidents have occurred at the Serbian border on several occasions over the past few years.