Ukraine war live updates: Russian-occupied territory comes under attack; Hungary accused of blocking Ukraine support

This is CNBC's live blog tracking developments on the war in Ukraine. See below for the latest updates. 

EU foreign ministers are increasingly frustrated with Hungary's frequent opposition to measures by the bloc that are meant to provide aid to Ukraine and kick start EU accession talks for Kyiv.

Lithuania's foreign minister Gabrielius Landsbergis accused Budapest of implementing a "systematic approach towards any efforts by the EU to have any meaningful role in foreign affairs."

The Russian-occupied eastern Ukrainian territory of Luhansk came under attack overnight, Russian officials said, causing a fire and drawing emergency services to the scene.

A senior Russian diplomat said he suspected the attack was followed by a second shelling of the area by Ukrainian forces. CNBC could not verify the details on the ground.

Russian air defenses shot down a drone flying over the Moscow region, its governor said. Elsewhere, Ukrainian President Volodymyr Zelenskyy will visit Belgium on Tuesday to sign a security pact with the country's prime minister.

The Netherlands proposed to contribute core parts from its existing stocks, in a bid to assemble a Patriot air defense system in collaboration with other countries and deliver it to Ukraine, the Dutch government said in a Tuesday statement.

"We are engaged in talks with partners to compile a Patriot system, including training for Ukrainian crews," Dutch Defense Minister Kajsa Ollongren said. "With our offer, and consulting with partner countries providing several key parts and munitions, we can provide Ukraine with at least one fully operational system in a short time frame."

The Netherlands said it has already identified which countries can offer additional parts and munitions