Three Russian missiles crashed into Ukraine's historic city of Chernigiv on Wednesday, killing 17 people as officials pleaded for more air defence systems from allies.

Pools of blood gathered on the street at the scene of one strike, where rescuers searched for survivors in the rubble and carried away the wounded on stretchers, official images showed.

As President Volodymyr Zelensky appealed for more help from Western allies, the US House of Representatives finally announced a vote on a massive new military aid package that includes some $61 billion in long-delayed support for Kyiv, a move welcomed by President Joe Biden.

In Chernigiv, resident Olga Samoilenko told AFP how she ducked with her children into the corridor of their apartment building for protection when the first missile exploded.

"Our neighbours were already there. We started shouting for everyone to fall to the floor. They did. There were two more explosions. Then we ran to the parking lot," the 33-year-old said.

The official death toll grew to 17 during the day, while emergency services said 60 people -- including three children -- had been wounded.

- Zelensky questions West's resolve -

Mayor Oleksandr Lomako said more than a dozen buildings had been damaged in the attack while other officials said dozens of vehicles and medical and educational facilities were also damaged.

A 25-year-old policewoman on sick leave was among those killed after suffering a severe shrapnel injury, the interior minister announced.

AFP journalists at the scene saw a body being pulled from the rubble and an eight-storey hotel building gutted by the strike where municipal workers were using a crane to clear debris.

Nearby apartments, a beauty salon and a beer shop were among structures whose windows were blown out by the attack.

The Chernigiv region, which borders Belarus to the north, was partially occupied at the beginning of the Russian invasion but has been spared fighting for around two years since Russian forces retreated.

Zelensky blamed Russia for the attack but also said the West should do more to help defend Ukraine's skies.

"This would not have happened if Ukraine had received sufficient air defence equipment and if the world's determination to resist Russian terror had been sufficient," he said.

- 'Reliable protection' -

Addressing the European Council by video link later Wednesday, Zelensky said Ukraine should enjoy the same cover from aerial attacks as Israel and pleaded for more air defence systems.

"Here in Ukraine, in our part of Europe, unfortunately, we don't have the level of defence that we saw recently in the Middle East," Zelensky said, according to a statement on his web site.

Zelensky was referring to the interception of Iran's drone and missile barrage on Israel last Saturday.

"Our Ukrainian sky, the sky of our neighbors deserves the same level of defence."

The Ukrainian president added: "All lives are equally valuable."

In Washington, Biden applauded the planned vote in Congress on the massive new Ukraine aid package, scheduled for Saturday after months of political wrangling, and called on American lawmakers to pass it.

"I will sign this into law immediately to send a message to the world: 'We stand with our friends, and we won't let Iran or Russia succeed'," he said in a White House statement.

Chernigiv lies some 145 kilometres (90 miles) north of Ukraine's capital, Kyiv, and had a pre-war population of around 285,000 people.

The city was badly damaged when Russian tanks swept into Ukraine from Belarusian territory in February 2022 and besieged the city until April that year.