Video report by ITV News Senior International Correspondent John Irvine.
Brazil's president Dilma Rousseff has said the Chamber of Deputies vote to impeach her has no legal basis.
Ms Rousseff maintained that she "committed no impeachable crime" despite Monday's vote, in which at least 342 of deputies agreed that she should be impeached.
Proceedings will now move to the senate.
Brazil's lower house of Congress has voted to back the impeachment of President Dilma Rousseff - reaching the required 342-vote mark.
But the presidential chief of staff said the government is confident the Senate will dismiss the impeachment.
Brazil's ruling Workers' Party has conceded defeat in the vote over whether to impeach President Dilma Rousseff.
With 400 votes cast so far on Sunday in the lower house, 297 congressmen have voted in favour of impeaching Rousseff over claims she covered up a financial scandal.
While admitting defeat, the government has vowed to take its fight to the next stage in the Senate.
The party's leader in the chamber, Jose Guimaraes, said: "The fight continues now in the Senate".
The number of congressmen who have voted in favour of impeaching Brazilian President Dilma Rousseff has risen to 224.
So far 300 votes have been cast out of a total of 513 MPs, with 342 being the minimum number required in the lower house.
The speaker of the lower house, Eduardo Cunha, has also voted in favour of impeachment.
With 100 votes cast in Brazil so far, 73 congressmen have opted in favour of impeaching President Dilma Rousseff over her alleged financial cover-up.
A total of 27 either voted against the motion or abstained.
A minimum of 342 votes from the lower house's 513 MPs is required for proceedings to pass to the Senate.
Report by ITV News' Senior International Correspondent John Irvine
MPs in Brazil's lower chamber have begun voting on whether to impeach President Dilma Rousseff over accusations of corruption.
President Rousseff has been accused of manipulating the country's finances to hide a worsening economic crisis - but she denies any wrongdoing.
Brazilians are divided over the issue and if she is impeached the country could be plunged into chaos.
Pro and anti impeachment supporters have taken to the streets of Brazil as they headed towards the Palace of Congress to make their voices heard as the country's lower house decide on whether or not to push for the impeachment of President Dilma Rousseff.
A fence called the 'wall of shame' has been put up ahead of a vote to decide whether to impeach Brazil's President Dilma Rousseff amid claims she manipulated government accounts to allegedly favour her re-election in 2014.
Located outside the Palace of Congress in Brasilia the fence is reportedly intended to separate rival supporters who are expected to gather outside as the lower house decide whether or not Ms Rousseff should be impeached.
If two-thirds of lower house members vote in favour of impeachment tonight, the case will be sent to the senate for trial.
The lower house in Brazil today started the three-day debate over whether to impeach President Roussef over alleged corruption.Read the full story ›
The president's political future hangs on a vote that will be decided by Brazil's lower congressional house on Sunday.Read the full story ›