After their release, Mr. Lukin said he expected reciprocal actions.

在释放这些观察员后，鲁金说他在期待对方的回应。

Moscow also says it is " extremely concerned" for the safety of Russia's presidential special envoy Vladimir Lukin, who is in the conflict zone.

莫斯科方面同时表示，他们非常关注目前正在冲突地区的俄罗斯总统特使弗拉基米尔·鲁金的安全。

The observers who've now arrived safely in Berlin were freed less than a day after a Russian envoy Vladimir Lukin arrived in Slaviansk where they have been detained more than a week.

这些观察员现已安全回到柏林，就在不到一天前，俄罗斯使者弗拉基米尔·鲁金抵达他们被囚所在的斯拉维扬斯克。