Facebook, Twitter, Google executives to testify November 1 about Russia meddling in US election
Executives from the companies were already due to appear the same day before the Senate Intelligence Committee.
Executives from Facebook Inc
Executives from the companies were already due to appear the same day before the Senate Intelligence Committee, which is also investigating Moscow's alleged role in the election.
Aides to the committee's leaders declined comment. It is House Intelligence policy not to discuss the interview schedule.
Some US lawmakers, increasingly alarmed about evidence that hackers used the internet to spread fake news and otherwise influence last year`s election, have been pushing for more information about social networks in particular.
Moscow denies any such activity, and Trump has repeatedly dismissed allegations of collusion.
Facebook confirmed that company officials would testify. Google and Twitter did not immediately respond to requests for comment.