LONDON (AP) — UK Prime Minister Rishi Sunak on Saturday promised to provide tanks and artillery systems to Ukraine, amid renewed missile attacks by Moscow targeting multiple Ukrainian cities for the first time in nearly two weeks.

Nine people were killed and 64 others wounded in the southeastern city of Dnipro, where a Russian missile strike destroyed a section of an apartment building, said Kyrylo Tymoshenko, deputy head of the Ukrainian presidential office.

Infrastructure facilities were also hit in the western Lviv region and Ivano-Frankivsk regions, in the Odesa region on the Black Sea and in northeastern Kharkiv. Kyiv, the capital, was also targeted.

Sunak made the pledge to provide Challenger 2 tanks and other artillery systems after speaking to Ukrainian President Volodymyr Zelenskyy on Saturday, the British leader’s Downing Street office said in a statement.

It didn’t say when the tanks would be delivered or how many. British media have reported that four British Army Challenger 2 main battle tanks will be sent to Eastern Europe immediately, with eight more to follow shortly after, without citing sources.

Zelenskyy tweeted his thanks to Sunak on Saturday “for the decisions that will not only strengthen us on the battlefield, but also send the right signal to other partners.”

Ukraine has for months sought to be supplied with heavier tanks, including the US Abrams and the German Leopard 2 tanks, but Western leaders have been treading carefully.

The Czech Republic and Poland have provided Soviet-era T-72 tanks to Ukrainian forces. Poland has also expressed readiness to provide a company of Leopard tanks, but President Andrzej Duda stressed during his recent visit to the Ukrainian city of Lviv that the move would be possible only as an element in a larger international coalition of tank aid to Kyiv.

Earlier this month, France said it would send AMX-10 RC armored combat vehicles to Ukraine, designated “light tanks” in French. The US and Germany announced the same week that they would send Bradley fighting vehicles and Marder armored personnel carriers, respectively, for the first time.

Sunak’s announcement came as Russian forces fired missiles at Kyiv and other parts of Ukraine on Saturday in the first major barrage in days.

In Dnipro, rescuers were using a crane to try to evacuate people trapped in the apartment building’s upper stories, some of whom were signaling with the flashlights on their mobile phones, Tymoshenko said on Telegram. He also said there were likely people under the rubble.

In the northeastern Kharkiv region, Governor Oleh Syniehubov said two Russian missiles hit an infrastructure object again on Saturday afternoon, following a similar attack in the morning. In the city of Kharkiv, the subway suspended operations amid the attacks, according to its Telegram channel.

Another infrastructure facility was hit in the western Lviv region, according to Governor Maksym Kozytskyi.

Air defense systems were activated in other regions of Ukraine, as well, and as another round of air raid sirens sounded across the country in the afternoon, regional officials urged local residents to seek shelter.