The head of the FBI says Russia is still involved in American politics.

Director James Comey during questioning by the Senate Judiciary Committee on Wednesday agreed that Russia provides safe haven for cyber criminals. When asked by Republican Senator Lindsey Graham, Comey said that he does believe Russia is still involved in American politics.

The questions came as the South Carolina lawmaker pressed Comey on the dangers that Russia poses and could pose both to the US and other nations.

The FBI is investigating the possibility of contacts between the Trump campaign and Russia. Comey also says Russia is responsible for hacking the Democratic National Committee.

President Donald Trump has raised doubts about those assertions. Russian officials also have denied involvement.