Authorities say a Russian missile hit a Ukrainian army training ground in an attack that killed three soldiers and wounded 18 others.

Glide bombs and ballistic missiles struck a Ukrainian prison and a medical facility overnight as Russia's relentless strikes on civilian areas killed at least 27 people across the country, officials said Tuesday,

It is the third Russian attack on a Ukrainian training unit in little more than two months. An Iskander missile attack on a camp in the norther border region of Sumy killed six servicemen in May and another strike killed 12 people and wounded another 60 last month.