Eighteen migrants injured themselves trying to cross into the European Union via Bosnia’s border with Croatia.
All the migrants were men from Pakistan and Iraq and have been taken to hospital, Bosnian officials said.
Croatian police have been accused of brutality against migrants and refugees entering through Bosnian border towns.
"We have heard about these reports and are working to determine if Croatian police have been taking action at the border,” a Croatian official told Reuters.
The European Union border force Frontex has allegedly been turning a blind eye to ill treatment of refugees by guards at EU external borders, according to media reports.
Over 40,000 migrants and refugees have taken the Bosnian-Croatian route into the EU.
Croatia is an EU member state of the border of the bloc, while Bosnia is not part of the union.
According to the EU’s border agency, the number of detected illegal border crossings into the European Union (EU) last year was at its lowest level since 2013.
Syrians, Afghans and Iraqis were most commonly found to use the route to Eastern Europe via Turkey in 2018 – a route used by many Syrians fleeing civil war during the height of the migrant crisis in 2015.
Women account for 18 percent of the migrant population crossing from North Africa and Asia into the EU, while one in five claimed to be under the age of 18.
The drop in the number of migrants entering Europe has also had a knock on effect on the number of illegal overstays recorded, down by almost a quarter in 2018 compared to the previous year.
