Grand jury issues subpoenas in connection with Trump Jr., Russian lawyer meeting - sources

Donald Trump Jr. stands onstage with his father Republican U.S. presidential nominee Donald Trump after Trump's debate against Democratic nominee Hillary Clinton at Hofstra University in Hempstead, New York, U.S. September 26, 2016. REUTERS/Brian Snyder

WASHINGTON (Reuters) - A grand jury has issued subpoenas in connection with a June 2016 meeting that included President Donald Trump's son, his son-in-law and a Russian lawyer, two sources told Reuters on Thursday, signalling an investigation is gathering pace into suspected Russian meddling in the 2016 U.S. election.

The sources added that U.S. Special Counsel Robert Mueller had convened the grand jury investigation in Washington to help examine allegations of Russian interference in the vote. One of the sources said it was assembled in recent weeks.