The incident occurred at 01 am during the night. The patrol searched for a person at the address and therefore went in with a house search.
There were four people in the apartment and the police suspect that these are drugs.
"When you carry out the house search you find ammunition, but also drugs," says Jari Kiemunki, on-duty investigative officer at the police.
All are now suspected of weapons offenses and drug offenses. No person has been detained yet.
Otherwise, the police report that the night has been calm in the county.