Local officials in Ukraine on Wednesday said at least three people died due to Russian missile attacks in the Volyn region of the war-hit country.

Several were wounded after a factory in Lutsk was hit, regional head Yuriy Poguliaiko was quoted as saying by BBC.

According to reports, air strikes damaged buildings in the western Lviv region.

However, no casualty was reported.

Ukraine's air defence forces said they had destroyed 16 out of at least 28 missiles launched by Russia overnight, reports said.

Air raid sirens lasted for two hours in Lviv and Volyn regions of the country.

A Swedish company was reportedly hit by airstrikes in Lutsk.

"We are very sad to confirm that three of our colleagues have been killed," SKF company spokesman Carl Bjernstam told BBC.

An escalation of Russian attacks against civilians in Ukraine has brought more death and injuries to southern regions while hampering aid operations, the UN’s top humanitarian official in the country said on Monday.

Denise Brown issued a statement deploring the “indiscriminate” attacks impacting civilians and civilian infrastructure.

She stressed that people in the south, including in the Kherson and Odesa regions, had endured “a particularly harsh weekend” after reports that strikes left many civilians, including children, killed and injured.

An entire family, including an infant, were among the victims, according to media reports. Homes, hospitals and schools also were damaged.

Meanwhile, the UN and partners continue to support people across Ukraine. 

Last week, two inter-agency convoys delivered assistance to front-line communities in the Donetsk and Zaporizhzhia regions.

Trucks transported bottled water, food, medicines, shelter materials, hygiene kits, and household items to support more than 15,000 people who remain in these areas.

Since January, humanitarians have delivered aid to more than 7.3 million people in Ukraine, where a total of 18 million people need support.