Russian President Vladimir Putin, shown in Moscow on Monday, has effectively rejected a ceasefire in the ongoing war between Russia and Ukraine and hasn't budged from his demands. Kristina Kormilitsyna - sputnik, kremlin pool photo via AP

By ILLIA NOVIKOV AND GEIR MOULSON | THE ASSOCIATED PRESS

KYIV, Ukraine -A Russia-appointed official in Ukraine's occupied Luhansk region said Monday that Moscow's forces have overrun all of it- one of four regions Russia illegally annexed from Ukraine in September 2022 despite not fully controlling a single one.

If confirmed, that would make Luhansk the first Ukrainian region fully occupied by Russia after more than three years of war and as recent U.S.-led international peace efforts have failed to make progress on halting the fighting. Russian President Vladimir Putin has effectively rejected a ceasefire and hasn't budged from his demands, which include Moscow's control over the four illegally annexed regions.

There was no immediate comment from Kyiv on the claim made by the Moscow-installed leader of the occupied region, Leonid Pasechnik. In remarks to Russia's state TV Channel One that aired Monday evening, Pasechnik said he received a report "literally two days ago" saying that "100%" of the region was now under the control of Russian forces. The development came just hours after the top German diplomat said that Germany aims to help Ukraine manufacture more weapons more quickly as Kyiv looks to strengthen its negotiating position in peace talks with Russia.

"We see our task as helping Ukraine so that it can negotiate more strongly," Foreign Minister Johann Wadephul said during a visit to the Ukrainian capital, Kyiv, accompanied by German defense industry representatives.

"When Putin speaks of peace today, it is pure mockery," Wadephul told a news conference with Ukrainian Foreign Minister Andrii Sybiha. "His apparent readiness to negotiate is only a facade so far."

Russia's invasion shows no sign of letting up. Its grinding war of attrition along the roughly 620-mile front line and long-range strikes on civilian areas of Ukraine have killed thousands of troops and civilians.

Ukraine is outgunned and shorthanded on the front line and international aid has been vital for Ukraine's resistance against its neighbor's bigger army and economy. Germany has been Ukraine's second-largest military backer after the United States, whose continuing support is in doubt.

"We want to build new joint ventures so that Ukraine itself can produce faster and more for its own defense, because your needs are enormous," Wadephul said while standing next to Sybiha.

"Our arms cooperation is a real trump card - it is a logical continuation of our delivery of material," Wadephul said. "And we can even benefit mutually from it-with your wealth of ideas and your experience, we will become better."

The top German diplomat's trip to Kyiv came less than 48 hours after Russia launched its biggest combined aerial attack against Ukraine over the weekend, Ukrainian officials said, in an escalating bombing campaign that has further dashed hopes for a breakthrough in peace efforts.