As it happened: Ukraine crisis

Key Points

• US Secretary of State John Kerry says the talks with his Russian counterpart in Paris were "tough"
• Russian Foreign Minister Sergei Lavrov says discussions will continue in the coming days
• Nato chief Anders Fogh Rasmussen says there will be a "full review" of Nato-Russian co-operation
• EU announces 11bn euros ($15bn; £9bn) in aid to Ukraine
• Hundreds of pro-Russian demonstrators storm the regional government building in Donetsk
• Unarmed monitors from 18 countries to be sent to Ukraine. All times GMT