LONDON — A British lawmaker said on Friday that some of the same Russian-linked Twitter accounts that sought to influence the American presidential election were also deployed in Britain, in the strongest indication yet that Russia used the same tactics on both sides of the Atlantic.

Twitter disclosed to the United States Congress this week that it had identified 2,752 accounts affiliated with Russia’s Internet Research Agency, a notorious troll factory. In a letter to the company, the lawmaker, Damian Collins, wrote that “it has subsequently emerged that some of those accounts were also posting content that relates to the politics of the United Kingdom.”

Mr. Collins, a Conservative who is leading a parliamentary inquiry into “fake news,” had been presented with screen shots showing the same Russian-linked accounts posting about Britain, his office said Friday.

Any evidence that Russia sought to use social media to manipulate British politics, as the Kremlin appears to have done in the United States and France, could raise questions about the legitimacy of the referendum last year that called for Britain’s withdrawal from the European Union, or Brexit.