U.S. investigators have examined contacts Attorney General Jeff Sessions had with Russian officials during the time he was advising Donald Trump’s presidential campaign, according to people familiar with the matter.

The outcome of the inquiry, and whether it is ongoing, wasn’t clear, these people said. The contacts were being examined as part of a wide-ranging U.S. counterintelligence investigation into possible communications between members of Mr. Trump’s campaign team and Russian operatives, they said…

The focus of the U.S. counterintelligence investigation has been on communications between Trump campaign officials and Russia. The inquiry involving Mr. Sessions is examining his contacts while serving as Mr. Trump’s foreign-policy adviser in the spring and summer of 2016, one person familiar with the matter said.

The investigation is being pursued by the FBI, Central Intelligence Agency, National Security Agency and Treasury Department, officials have said. Counterintelligence probes seldom lead to public accusations or criminal charges.