Agence France-Presse: Nobel laureates sign petition for EU to secure Ukraine pilot's release
![Agence France-Presse: Nobel laureates sign petition for EU to secure Ukraine pilot's release](https://www.kyivpost.com/media/images/2016/03/06/p1ad6h5k6bl311f5o2ibanjgt8u/original_big.jpg)
Three Nobel Prize laureates were among thousands of people who signed a petition urging European leaders to secure the release of a hunger-striking Ukrainian pilot from a Russian jail.