Twitter has handed over to Senate investigators the profile names of 201 accounts linked to Russian interference in the 2016 presidential election, according to The Associated Press.

A source told the AP that the profile names or "handles" were handed over sometime this week.

Twitter has faced scrutiny from lawmakers probing Russian election interference after company executives gave a closed-door briefing to congressional investigators last month.

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Sen. Mark Warner Mark Robert WarnerIntelligence chief says Congress will get some in-person election security briefings Overnight Defense: Trump hosts Israel, UAE, Bahrain for historic signing l Air Force reveals it secretly built and flew new fighter jet l Coronavirus creates delay in Pentagon research for alternative to 'forever chemicals' House approves bill to secure internet-connected federal devices against cyber threats MORE (Va.), the top Democrat on the Senate Intelligence Committee, said Twitter demonstrated an “enormous lack of understanding” of the issue during the briefing and called its presentation to investigators “frankly inadequate on almost every level."

Politico had also reported that the social media company had deleted tweets and other data that was considered to be important to officials probing alleged Russian election meddling.

The officials, who spoke anonymously to Politico, said they believed the social platform was one of the Kremlin’s most important tools in its attempts to meddle in the U.S. election.

Russian actors utilized bots, fake users, Twitter campaigns and exaggerated or fake stories to try to sway Americans, according to the officials.

Twitter is schedule to appear before the Senate Intelligence Committee on Nov. 1.