US Special Counsel Robert Mueller has agreed to testify publicly on July 17 before the House Judiciary and intelligence committees after both panels issued subpoenas to him.
This is the first time he has agreed to answer questions publicly about his 22-month investigation into Russian meddling in the 2016 presidential election.
Mueller's 448-page report, which was released publicly in April, found evidence that President Donald Trump's election campaign had multiple contacts with Russian officials. However, it found insufficient evidence to establish a criminal conspiracy between his campaign and Moscow.
"Americans have demanded to hear directly from the Special Counsel so they can understand what he and his team examined, uncovered, and determined about Russia's attack on our democracy, the Trump campaign's acceptance and use of that help, and President Trump and his associates' obstruction of the investigation into that attack," House Judiciary Chairman Jerry Nadler and House Intelligence Chairman Adam Schiff said in a joint statement.
Mueller, in his first public comments since starting the two-year investigation, said: "If we had confidence that the president clearly did not commit a crime, we would have said so. We did not, however, make a determination as to whether the president did commit a crime."
Four people were arrested on Tuesday following a projection of images of Donald Trump alongside convicted financier Jeffrey Epstein onto the royal Windsor Castle, where the US President is set to be hosted by King Charles during his state visit to Britain.
A United Nations Commission of Inquiry concluded on Tuesday that Israel has committed genocide in Gaza and that top Israeli officials including Prime Minister Benjamin Netanyahu had incited these acts.
Qatar and the United States are on the verge of finalising an enhanced defence cooperation agreement, top US diplomat Marco Rubio said on Tuesday, after Israel's attack on Hamas political leaders in Doha last week drew widespread condemnation.
Israel unleashed a long-threatened ground assault on Gaza City on Tuesday, declaring "Gaza is burning" as Palestinians there described the most intense bombardment they had faced in two years of war.
US President Donald Trump sued the New York Times, four of its reporters, and publisher Penguin Random House for at least $15 billion on Monday, claiming defamation and libel, and citing reputational damage, a Florida court filing showed.