Finland’s government is considering a move to close some crossing points along the country’s extensive border with Russia, in a bid to prevent people from attempting to enter without proper documentation.

On Tuesday, Interior Minister Mari Rantanen reported that the number of migrants at Finland’s southeastern border crossings has risen significantly since August due to what the government believes is a shift in Russia’s border policy and enforcement.

For years, Finnish and Russian border authorities have worked together to stop people without the necessary visas or passports, before they attempt to enter either of the two countries.

But according to Rantanen, Russia has begun allowing undocumented travelers to access crossing stations where they can request asylum in Finland.