Iraqi forces say there's about 5,000 IS militants in Mosul

A fresh push to push Islamic State out of Mosul is being met with resistance, suicide car bombs and street-to-street fighting. Our correspondent Fazel Hawramy says there may be about 5,000 militants left who will fight to the last man, as they fear what treatment they will receive if captured. Tens of thousands of shell-shocked and hungry citizens have fled in the last week.