Ukraine invasion: Fears grow of Russian use of chemical and biological weapons

Western officials have warned that with the opportunity for a quick Russian victory in Ukraine now seeming to have passed away, there's a real threat of the Kremlin turning to non-conventional weapons to break the deadlock.

The foreign ministers of Ukraine and Russia are preparing to hold their first face to face talks since the Russian invasion of its neighbour began.

And we hear from a resident of Kharkiv about life in the city.