KYIV, Ukraine (AP) — Russia launched waves of missiles and drones at Kyiv early Monday, killing at least 12 people in an attack that exposed widening gaps in Ukraine’s air defenses, authorities said.All of the ballistic missiles launched by Russia struck their targets, underscoring Kyiv’s need for more Patriot interceptor missiles — a point Ukrainian President Volodymyr Zelenskyy will likely reiterate at a NATO summit in Ankara, Turkey, this week. The attack came hours after Zelenskyy warned that a large-scale attack was imminent.A further 60 people were wounded, according to Zelenskyy, as emergency workers combed through rubble looking for survivors at residential high-rises in two locations that suffered direct hits.

Days earlier, on Thursday, a Russian strike killed 31 people in Kyiv, the deadliest for the capital this year. Russia’s Defense Ministry said the bombardment was retaliation for Ukraine’s recent long-range strikes, which have caused severe fuel shortages and pressured President Vladimir Putin.More than four years after Moscow launched its full-scale invasion of its neighbor, Ukraine’s advances in drone technology have given it an edge in recent months, analysts and Western officials say. Strikes on supply routes behind the front line have stripped the Russian army of momentum on the battlefield, they say, slowing its advance and driving up the cost.But Russia is now exploiting a different kind of momentum: vulnerabilities in Ukraine’s air defenses, which remain heavily reliant on the U.S. Patriot systems to intercept ballistic missiles it can rarely shoot down any other way. The war in the Middle East has strained the global supply of Patriot interceptors, already produced in limited numbers — a shortage now most of all being felt in Ukraine.Gaps in Ukraine’s air defense