U.S. special counsel Robert Mueller, who issued a report in April on Russian meddling in the 2016 presidential election, will testify in open session before the House of Representatives Judiciary and Intelligence Committees on July 17, the panels' Democratic chairmen said Tuesday.

Rep. Jerrold Nadler, chairman of the judiciary panel, and Rep. Adam Schiff, head of the intelligence panel, said in a joint statement that Mueller had agreed to testify after the two committees issued subpoenas on Tuesday.

A representative for Mueller did not immediately respond to a request for comment.