Watch: How Brazil's dramatic election unfolded

Millions of Brazilians voted on Sunday in the first round of the presidential election. President Luiz Inácio Lula da Silva, 80, is running for his fourth non-consecutive term, while his challenger, Flávio Bolsonaro, 45, is contesting his first presidential race. With the results, the election is headed to a runoff on October 25, as reported by BBC correspondent Ione Wells.