A brutal machete duel at Sunday lunchtime, another scene from Khan's 'safe' London: Video captures masked teens attacking each other with machetes in broad daylight in family park

A brutal machete duel occurred at a family park in London on Sunday lunchtime, with masked teens attacking each other with machetes in broad daylight. The incident was captured on video and has raised concerns about safety in the city. The event is being linked to Khan's 'safe' London initiative.