Russia launched a massive overnight assault on Ukraine using 420 drones and 39 missiles, President Volodymyr Zelenskyy said Thursday, as diplomatic efforts to end the five-year conflict continued in Geneva.

The bombardment, which included 11 ballistic missiles, targeted critical infrastructure and residential areas across eight Ukrainian regions. Dozens of people were injured, including children, though authorities have not released confirmed casualty totals. Ukrainian air defenses intercepted most of the Russian missiles, according to Zelenskyy.

The attack struck gas infrastructure in the Poltava region and electrical substations in the Kyiv and Dnipropetrovsk regions. Emergency crews responded across five additional regions and the capital. Zelenskyy credited Western partners for providing timely delivery of air defense interceptors that helped counter the assault.

US envoys Steve Witkoff and Jared Kushner were scheduled to meet with Rustem Umerov, head of Ukraine's National Security and Defense Council, in Geneva on Thursday. The talks were expected to address details of a possible postwar recovery plan for Ukraine and preparations for an upcoming trilateral meeting with Russian officials, potentially next week.

Zelenskyy said he spoke by phone with US President Donald Trump on Wednesday, thanking him for his efforts in pursuing peace negotiations. The US-brokered talks between Moscow and Kyiv are ongoing but remain deadlocked over the future of Ukrainian territory that Russia claims.

Separately, Russia returned 1,000 bodies of fallen Ukrainian soldiers and received back 35 bodies of its troops, according to Vladimir Medinsky, head of the Russian delegation at previous talks with Ukraine. The timing of this exchange was not specified.