Slovakian police injured a Syrian woman when they opened fire on a group of migrants as they attempted to flee in a car, the TASR news agency reported Monday.
Customs police ordered four cars to stop early Monday for a control at Velky Meder - south-east of the capital, Bratislava, and near the border with Hungary - but one of the drivers attempted to flee.
Four migrants were in the car, the agency reported.
Police have refused to comment. A spokesman from a nearby hospital confirmed that a 26-year-old woman from Syria was in stable condition after surgery and that a bullet was removed from her back.
Slovakian authorities said earlier that smugglers of Germany-bound migrants were looking for a path through Slovakia and the Czech Republic to circumvent the tightly controlled border between Hungary and Austria.
Slovakia and other Eastern European states have been hostile to migrants as their numbers exploded last year and have challenged an EU scheme to redistribute asylum seekers across the bloc.