Huge crowds at Rio carnival parade in Brazil

One of Rio de Janeiro's oldest and most popular carnival street parties has attracted a record 2.2 million revellers, police have said.

The Cordao da Bola Preta (Black Dot) parade dates back to 1918.

Some 400 street parties have been scheduled for the Rio carnival, but organisers say the Bola Preta parade is considered to be part of the city's cultural heritage.