Russia-Ukraine crisis updates: Ukraine calls for tougher sanctions

Ukraine's top diplomat wants to see tougher sanctions slapped on Russia over its aggressive posture toward his country.

MOSCOW -- Ukraine's top diplomat wants to see tougher sanctions slapped on Russia over its aggressive posture toward his country.

Ukrainian Foreign Minister Dmytro Kuleba said Wednesday on Twitter: "To stop Putin from further aggression, we call on partners to impose more sanctions on Russia now."

He expressed thanks for international sanctions imposed on Moscow the previous day. But he asked countries to crank up the pressure on Russian President Vladimir Putin.

Kuleba wrote: "Hit his economy and cronies. Hit more. Hit hard. Hit now."