Elon Musk, the millionaire founder of SpaceX, announced on Saturday that the company’s Starlink satellite broadband service is now accessible in Ukraine, and that SpaceX is delivering additional terminals to the nation, whose internet has been crippled as a result of the Russian invasion.

“The Starlink service is now available in Ukraine. More terminals are on their way “Musk sent a tweet.

He was replying to a tweet from a Ukrainian government official, who begged Musk to deliver Starlink stations to the troubled country.

“@elonmusk, while you try to colonize Mars — Russia try to occupy Ukraine! While your rockets successfully land from space — Russian rockets attack Ukrainian civil people!” Ukraine’s vice prime minister, Mykhailo Fedorov, tweeted.

Internet connectivity in Ukraine has been affected by the Russian invasion, particularly in the southern and eastern parts of the country where fighting has been heaviest, internet monitors said on Saturday.

While extremely costly to deploy, satellite technology can provide internet for people who live in rural or hard-to-serve places where fiber optic cables and cell towers do not reach. The technology can also be a critical backstop when hurricanes or other natural disasters disrupt communication.

Musk said on Jan. 15 that SpaceX had 1,469 Starlink satellites active and 272 moving to operational orbits soon.