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."
Iran is reviewing a proposed agreement with the United States to halt the war between the two countries, Iran's Mehr news reported on Tuesday, after US President Donald Trump said talks to reach a deal were continuing.
The World Health Organisation said there have been 321 confirmed cases of Ebola in the Democratic Republic of Congo outbreak and 116 suspected cases, marking a large drop in the number of suspected cases as hundreds were ruled out after investigation.
Israel kept up strikes on southern Lebanon on Tuesday, pressing its campaign against Hezbollah a day after US President Donald Trump asked Israeli Prime Minister Benjamin Netanyahu not to attack Beirut, averting further escalation in the three-month-old war.
Russian drones and missiles pounded the Ukrainian capital Kyiv and other cities early on Tuesday, killing at least 11 people and wounding more than 100, authorities said, following days of warnings about Moscow's plans for a major assault.
Two people died in central Kenya during a protest against a planned US Ebola quarantine facility, a protest organiser told Reuters on Tuesday, as President William Ruto rebuffed criticism it will endanger Kenyans.