He says the recognition will happen unless the Israeli government takes "substantive steps to end the appalling situation in Gaza", including a ceasefire and a commitment to a long-term peace process Aljazeera reported.
Most countries - about 139 in all - formally recognise a Palestinian state, and last week France pledged to do so at the same UN meeting
Earlier, Gaza's Hamas-run health ministry said more than 60,000 Palestinians have now been killed since Israel's offensive began
A UN-backed food security body also said "the worst-case scenario of famine is currently playing out" in Gaza; Israel insists there are no restrictions on aid deliveries and that there is "no starvation"
Israel does not allow international news organisations, including the BBC, into Gaza to report freely
