Special counsel Robert Mueller has spoken — and he's giving no comment.

Mueller was approached by MSNBC's Mike Viqueira on Sunday as he was leaving St. John's Episcopal Church in Washington, D.C., for Easter services. Viqueira asked Mueller as he and his wife, Ann Mueller, were getting into their car whether he would testify before Congress after the Thursday release of his report on President Donald Trump and Russian electoral interference.

Mueller said he would be offering "no comment."

Viqueira then asked Mueller if he had been investigating anyone other than Trump, and the evidence was identical, would they be indicted? The reporter also asked why Mueller did not make a recommendation on possible obstruction of justice and if Attorney General William Barr accurately characterized the report in his initial summary and subsequent press conference.

Mueller did not respond as he entered his car.

"I think it's accurate to characterize Director Mueller today as being 'tight-lipped' in response to my questions," Viqueira said afterwards on MSNBC.

Mueller has remained silent during the course of his probe, which began in May 2017, refusing to engage in public discourse about the investigation. Mueller's "no comment" was the first time he had spoken publicly to the media about the investigation since its inception.

In his 400-plus page report on Russian interference in the 2016 presidential election, possible collusion between the Trump campaign and Russian officials and whether the president sought to obstruct justice, Mueller said he was unable to establish a Trump-Russia conspiracy and said he could not come to a traditional prosecutorial decision on obstruction.