Russian missiles and drones struck at least four Ukrainian regions overnight.

Officials said on Tuesday that five people were killed.

Ukrainian President Volodymyr Zelenskyy said his forces had damaged two more Russian oil refineries in long-range strikes.

The attacks continued even as front-line positions stayed largely unchanged.

Zelenskyy was scheduled to meet U.S. President Donald Trump and other world leaders at the U.N. General Assembly in New York.

He is seeking help to end Russia's full-scale invasion, which has lasted more than 4½ years.

Trump has called on Zelenskyy to halt strikes on Russian oil refineries and other fuel infrastructure.

Trump said these strikes add to global shortages and higher prices.

Kyiv began targeting refineries after Moscow repeatedly attacked Ukraine's power grid.

Zelenskyy has offered to stop those strikes if Russia ends its attacks on energy infrastructure.

Zelenskyy also wants help to keep Ukrainian grain flowing to world markets through the Black Sea.

Russian attacks on cargo vessels have badly disrupted Kyiv's exports.

In recent years, Russia and Ukraine have supplied about 30% of world wheat exports and 12% of corn exports, mostly through the Black Sea.

Last month, attacks cut both countries' agricultural exports by two-thirds, Thomas de Waal of the Carnegie Europe think tank said in a report Tuesday.

He said the missing grain puts several African countries at risk of famine.

French President Emmanuel Macron said France would send Ukraine more radar systems to help protect its power grid.

He said he had discussed with Trump a possible truce halting strikes on energy infrastructure, plus a moratorium on Black Sea attacks.

Zelenskyy began his New York visit by meeting U.S. senators and thanked them for bipartisan support.

In Kyiv, resident Iryna Panina said she had lost hope in international peace efforts.