The UN Refugee Agency, UNHCR, has criticised the government's proposed deportation law that would prevent people crossing the eastern border from seeking asylum.
The agency said closing the border to asylum seekers would set a dangerous precedent.
While the UNHCR said it recognises Finland's challenging geopolitical position in sharing a land border with Russia, but that preventing people seeking international protection from entering the country violates refugee and human rights rules.
"As we have witnessed at several European borders, pushback procedures put people at risk, too often leading to serious injuries or even death," Philippe Leclerc, UNHCR's Regional Bureau Director for Europe, said in a press release.
The government unveiled its proposed deportation law on Tuesday. The bill will now move to Parliament, where it must gain a five-sixths majority to pass.
The bill is a reaction to Russia's instrumentalised migration, as the proposal aims to prevent people attempting to cross the eastern border from seeking asylum.