The TG2 advanced to Petrinja at about 7 a.m. after a heavy artillery preparation. The 12th Home Guard Regiment entered the city from the west and was subsequently assigned to garrison Petrinja and its surrounding area. After the loss of Petrinja to the HV, the bulk of the ARSK Banija Corps started to retreat towards Dvor. The HV 57th Brigade advanced against light resistance and took control of the Petrinja–Hrvatska Kostajnica road. During the night of 6/7 August, the 20th Home Guard Regiment, supported by Croatian police and elements of the 153rd Brigade, captured Glina despite strong resistance. The 153rd Brigade then took positions that allowed the advance to continue towards the village of Maja in coordination with the 2nd Guards Brigade, which drove south from Petrinja towards Zrinska gora conducting mop-up operations. The 140th Home Guard Regiment flanked the 2nd Guards Brigade on the northern slope of Zrinska Gora, while the 57th Brigade captured Umetić. The 103rd and the 151st Brigades, and the 17th Home Guard Regiment, advanced towards Hrvatska Kostajnica, with the addition of a battalion of the HV 145th Brigade which would arrive that afternoon. Around noon, the 151st Brigade connected with the Bjelovar Corps units on the Sunja–Hrvatska Dubica road. They were assigned to secure roads in the area afterwards.