The European Commissioner for Home Affairs has responded to a public letter from five Slovenian MEPs on Austria's decision to extend controls at the border with Slovenia.
In her reply, she agreed with the EU court that such checks should only be a measure of last resort.
Earlier this month, an Austrian court ruled the border controls were illegal and referred the case to the EU Court of Justice in Luxembourg.
Austria implemented border controls from November 2017 until mid-May 2022, citing terrorismt as the reason. As of 12 May, a new reason for controls came into force - the threat of arms smuggling from Ukraine. This is why the country continues to control its borders with Slovenia as well as with Hungary.