NATO and Ukraine will hold emergency talks on Tuesday after Russia attacked a central city with an experimental, hypersonic ballistic missile that escalated the nearly 33-month-old war. The conflict is “entering a decisive phase”, Poland’s Prime Minister Donald Tusk said late on Friday, and “taking on very dramatic dimensions”. Ukraine’s parliament canceled a session as security was tightened following Thursday’s Russian strike on a military facility in the city of Dnipro.

In a stark warning to the West, President Vladimir Putin said in a nationally televised speech that the attack with the intermediate-range Oreshnik missile was in retaliation for Kyiv’s use of US and British longer-range missiles capable of striking deeper into Russian territory.