President Donald Trump called Elon Musk last week and asked him to restore Ukraine’s full access to the Starshield satellite communications network, according to a senior administration official and a person briefed on the exchange.

Trump’s call to Musk, who owns the Starshield network, came after Ukrainian officials reported that they were encountering new limits on their ability to operate the military drones that have become essential to their war against Russia. The development raised alarms in Ukraine that Trump, who has demanded that Ukraine stop its drone attacks on Russian diesel refineries, might have instructed Musk to impose the limits.

Asked Thursday whether he had made such a call to Musk, as first reported by The Wall Street Journal, Trump declined to say. “I don’t want to comment on it, you know, whether I called or whether somebody else called — doesn’t make any difference, I guess.…