Ukraine and separatist rebels in the east of the country exchange prisoners
BBC OS gives a vibrant account of the day\u2019s events with explanation and reaction from those involved.
Ukraine has handed over more than 260 people to the pro-Russian militants in exchange for 74 held captive in the self-proclaimed "people's republics" in Donetsk and Luhansk. We have the latest from Kiev.
And we have the latest on medical evacuations which have been taking place from a rebel-held area on the outskirts of the Syrian capital, Damascus.
We also take a look back at some of the best coverage of 2017.
(Photo: Reuters/Valentyn Ogirenko)