UN Secretary-General, Antonio Guterres, has condemned the terrorist attack in south-western Finland, which killed at least two people and wounded a half-dozen others.

"The United Nations stands in solidarity with the Government of Finland in its fight against terrorism and violent extremism," the Secretary-General said in a statement from his spokesperson.

He extended his heartfelt condolences to the government and people of Finland, and wished a speedy recovery to the injured.