The Ottomans faced a stubborn resistance in the Rhodopes interior: central areas were invaded by the armies of Dzhedit Pasha and Ibrahim Pasha. The former advanced through the road between Stanimaka and Bachkovo Monastery along the valley of Chepelarska river, while Ibrahim pasha set off from Plovdiv via Parvenets and then through the valley of Vacha River. Fighting occurred at Zarenitsa, Zagrad, Gradishte, Chiltepe and Karakulas (along Vacha), Imaretdere and Momina Voda (heights close to Ardino) among others. Especially ferocious were the engagements at Momina Voda, where prominent Ottoman general Sarǎ Baba was killed, and Karakulas where Enihan Baba perished.