Russia frees imprisoned French researcher Laurent Vinatier
· France 24Russia has freed Laurent Vinatier, a French researcher serving a three-year prison sentence for flouting laws requiring "foreign agents" to register with authorities. Vinatier will be exchanged for detained basketball player Daniil Kasatkin, accused by the US of hacking. Russian media reported that Vinatier had been pardoned by President Vladimir Putin. France24 Angela Diffley explains further.