The acting speaker of the lower house of Brazil's Congress has annulled the impeachment process against President Dilma Rousseff  and called for a new vote.

Waldir Maranhao said there were procedural flaws in the April 17 vote in the chamber. He said the impeachment process should be returned by the Senate so that the lower house can vote again.

After last month's lower house vote, the impeachment process was passed to the Senate, where a Senate committee recommended on Friday that Rousseff be put on trial by the full chamber for breaking budget laws.