U.S. Republican vice presidential candidate Mike Pence on Wednesday vowed there would be “serious consequences” if the FBI determines Russia is behind a recent hacking attempt and is meddling in the Nov. 8 U.S. presidential election.

“If it is Russia and they are interfering in our elections, I can assure you both parties and the United States government will ensure there are serious consequences,” the Indiana governor and Donald Trump’s running mate said in a statement.

Pence’s comments come as the FBI is investigating the release of sensitive Democratic Party emails. He spoke moments after Trump told reporters that it’s “far-fetched” to think Russia hacked Democrats to help him.