Russia-Ukraine updates: US sanctions Russian military shipbuilder, diamond miner

President Biden on Tuesday expressed skepticism regarding Russia’s claim that its forces will move away from Kyiv and Chernihiv.

"I don't read anything into it until I see what their actions are. We’ll see if they follow through on what they’re suggesting," Biden said during a joint press conference with Singapore's prime minister.

Biden also commented on the ongoing negotiations in Turkey between Ukraine and Russia and said there is consensus among Western allies to "see what they have to offer."

"But in the meantime, we’re going to continue to keep strong sanctions. We are going to continue to provide the Ukrainian military with their capacity to defend themselves and we are going to continue to keep a close eye on what's going on," Biden said.

-ABC News' Justin Gomez

A rocket strike on a regional administration building in the southern Ukrainian port city of Mykolaiv killed 12 and injured 33 people, according to Ukrainian State Emergency Services.

Emergency services said 18 people were rescued from the rubble.

According to state officials, the strike occurred Tuesday at 8:45 a.m. local time. Search and rescue operations are still underway.

-ABC News' Natalya Kushnir

Gen. Tod Wolters, the top U.S. military commander in Europe, met with lawmakers on Capitol Hill Tuesday, telling them he expects he’ll need more U.S. troops and it’s possible they may become a permanent force in the country.

With U.S. troop levels in Europe now at 100,000 from 60,000 just a few months ago, Wolters said it’s very likely that the number of troops could continue to rise depending on the situation in Ukraine.

“My suspicion is we're going to still need more,” Wolters said. "And obviously, there's always a mix between the requirement of permanent versus rotational and there are pluses and minuses of each one. We'll have to continue to examine the European contributions to make a smart decision about where to go in the future."

Wolters praised Ukraine’s military and its ability to stall Russian military operations through the weapons systems provided by the U.S. military.

When asked if the U.S. had overestimated the Russians and underestimated Ukraine’s defensive capability, Wolters said in part, "When this crisis is over with we will accomplish a comprehensive after-action review in all domains and in all departments and find out where our weak areas. Where it makes sure that we can find ways to improve and this could be one of those areas."

-ABC News' Luis Martinez

The United Kingdom's National Crime Agency said it's seized a superyacht owned by a Russian national -- worth around $49.92 million -- in Canary Wharf in London.

The National Crime Agency's statement doesn't identify the Russian national but says the owner deliberately registered the ship to a company based in Saint Kitts and Nevis in the Caribbean. The agency also said the ship carried Maltese flags, allegedly to hide its origins.

British Transport Secretary Grant Shapps said the seizure "turned an icon of Russia’s power and wealth into a clear and stark warning to Putin and his cronies." Shapps said the seizure proves "we can and will take the strongest possible action against those seeking to benefit from Russian connections."

-ABC News' Christine Theodorou