Residents at an exchange student dormitory in Turku were ordered to undergo mandatory health checks by the Regional State Administrative Agency for Southwestern Finland (AVI) on Friday, according to the authority's senior director Heikki Mäki.
In practice, the health checks will involve being tested for coronavirus infections.
The dorm in question has 65 residents, nine of whom have already tested positive for Covid-19.
Mäki noted that the city was responsible for carrying out the tests.
On Thursday Turku Mayor Minna Arve announced that a major coronavirus outbreak among foreign exchange students had taken place, characterising the infection chain as the most serious seen to date in the city.
At least 71 cases had been diagnosed as of Thursday, with a very large number of individuals being exposed to the virus.
Restrictions on movement in some areas are being considered, according to Arve, and police have been requested to provide assistance in monitoring quarantines.
There are currently 180 exchange students at the University of Turku and 112 such students at the Turku University of Applied Sciences.
