A morning rush hour assault killed at least one person in Kyiv, and left critical infrastructure damaged in the Black Sea region of Odesa, according to officials.

A spokesperson for Ukraine's State Emergency Service said a total of 11 people had been killed during the Russian strikes throughout the course of the day.

Kyiv region resident Valentyna says her home was destroyed in the attack.

"I got out of the house walking over glass splinters. Then I pulled glass splinters out of one foot. I got high blood pressure and (medical workers) gave me an injection. I don't know, I don't remember how I got out of the house. Everything was in rubble."

This man also witnessed the shelling. He says he has gone deaf because of the noise.

Now, all he hears is a whistling in his ears.

Back in the capital, people sought cover in the metro station during a nationwide air alert.

Explosions could be heard overhead.

The missile strikes followed a drone attack overnight - and came a day after Ukraine secured pledges of modern battle tanks from Germany and the United States to beef up its troops.

It's a move that has infuriated Russian officials. Moscow has in the past responded to apparent Ukrainian successes with massed air strikes.

An air force spokesperson said as many six warplanes had taken off from an Arctic region in northern Russia and launched long-range missiles.

At one point, Kyiv authorities said all the incoming missiles had been shot down by air defenses.

But warned the threat had not passed.

Minutes later, loud explosions rocked two districts of Kyiv.

Impacts were also reported elsewhere in the Kyiv region, damaging infrastructure and homes.

The latest attack on the city is one of more than a dozen air strikes Russia has unleashed on the power grid since October, which have caused sweeping outages during winter.

Ukraine's largest private energy producer, DTEK, said it was conducting emergency power shutdowns because of the danger of missile attacks.

Other power producers said they were following suit.