Kirkuk is one of most oil rich cities of Iraq. The ISIS militants have been given a tough fight in Mosul, the stronghold of ISIS. Its an attempt to divert the attention of kurdish forces to Kirkuk.
The heavily armed ISIS militants have attacked a hotel in central city that was being used by Iraqi police as their headquarter. The southern and southwestern parts of Kurkuk has been taken control by ISIS militants. A lot of killing and burning has been happening in this area.