Tunisia: Ennahda party's HQ 'under attack'

Violent protests have erupted in central Tunisia, after the results of the country's first democratic elections in decades were announced.

Police used tear gas against hundreds of people in Sidi Bouzid who were protesting against the cancellation of seats won by one of the parties.

The Islamist Ennahda party won last Sunday's poll. Amateur video apparently shows supporters of a rival party attacking Ennahda's local headquarters.