Gov. J.B. Pritzker announced Thursday even stricter rules for one region of the state and said state officials would be tracking down businesses throughout Illinois that don’t follow the added restrictions.

The governor is tightening restrictions in Region 1 in northwest Illinois where the COVID-19 positivity rate stood at 11.2 percent on Thursday. Region 1, which has been under Tier 1 restrictions since Oct. 3, is the first region in the state to be moved to Tier 2 restrictions amid the resurgence. Gatherings in Region 1 will now be limited to 10 people and no more than 6 people can sit at an outdoor table at one time. Region 5, in southern Illinois, went under additional restrictions on Thursday, shutting down indoor service at bars and restaurants.