Hospitals on frontline of Israel’s Gaza invasion

The desperate plight of civilians trapped inside hospitals in northern Gaza - encircled by Israeli forces fighting Hamas - is raising alarm around the world.

The UN says only one is still able to take in patients. And at Gaza's biggest hospital, al-Shifa, they've been digging a mass grave for the many patients who've died in recent days.

Our Foreign Affairs Correspondent Paraic O'Brien looks at the situation in and around Al-Shifa - and a warning his report contains distressing images.