At least two dozen Ukrainians were killed via Russian airstrike with nearly just as many injured at a postal building in an attack its regional governor called "pure terrorism."

At least 24 people were killed and 19 others injured in the village of Yarova after Russian military forces struck the area around 11 a.m. local time at Ukraine's national post service as local workers and residents stood in line to receive a pension payout. Photo Provided By EPA/State Emergency Service of Ukraine UPI

Sept. 9 (UPI) -- At least two dozen people in Ukraine on Tuesday morning were killed in a Russian airstrike, with nearly as many injured at a postal building.

According to local authorities, at least 24 people are dead and 19 others injured in the village of Yarova in the Donetsk Oblast region after Russian forces struck the area around 11 a.m. local time at Ukrposhta, Ukraine's national post service, as local workers and residents stood in line to receive a pension payout.

"Such Russian strikes must not be left without an appropriate response from the world," Ukraine's President Volodymyr Zelensky posted on social media.

Two injured were hospitalized but the full extent of damage was not immediately clear.

Regional Governor Vadim Filashkin called Russia's air attack "pure terrorism" and said it was "not a military operation," he wrote on Telegram.

The Ukrainian postal service facility sat less than 6 miles from Russian-occupied territory. Video footage depicted bodies among damaged postal service cars.

The attack represented a higher fatality count bombing since the end of last month when around 23 Ukrainians were killed in overnight air strikes on Ukraine's capital Kyiv.

On Tuesday, Zelensky added that the world "must not remain idle" as a result of Russia's morning airstrikes.

"A response is needed from the United States. A response is needed from Europe. A response is needed from the G20," he stated.

It came after some 550 Russian drones in July surpassed previous records and penetrated Ukraines air defenses.