Eyewitness describes moment six-year-old boy falls from 10th floor of Tate Modern

A six-year-old boy is in a critical but stable condition after he was "thrown" from the 10th floor of the Tate Modern art gallery in London. The child was found on a fifth floor roof after he fell from the viewing platform on Sunday afternoon.

BBC journalist Olga Malchevska was at the gallery with her son when the incident happened.