An ethics committee in Brazil's Chamber of Deputies has voted in favor of a motion to strip the former speaker of the lower house of Congress of his mandate over allegations he lied when he denied possessing foreign bank accounts.

Eduardo Cunha was once among the most powerful men in Brazil's Congress, and with the Rio de Janeiro representative still wielding considerable influence Tuesday's 11-9 vote was a nail-biter.

The result hinged on a single representative, who in the end voted for the motion.

The ethics committee focused on allegations Cunha lied when he told a separate parliamentary committee he didn't hold foreign accounts. Swiss authorities showed Cunha did hold accounts there.

The motion will move to full Chamber of Deputies, where it needs a majority vote to take effect.