 Even without Jalayirid support, Yagi Basti and Malek Asraf campaigned in Fars and were able to sack Abarquh.They were heading south in an attempt to take Shiraz when they learned that Hasan Kucek had been murdered in December 1343.Malek Asraf, Yagi Basti and his half-brother Surgan gained control of the Chobanid realm after Hasan Kucek's death.