Mass protest over F1 in Bahrain

Opposition supporters in Bahrain have attended a mass protest demanding an end to the crackdown on dissent, ahead of the Formula 1 Grand Prix on Sunday.

Tens of thousands of people walked along a motorway from Budaiya, an area to the west of the capital, Manama.

Activists have promised "three days of rage" at the decision to go ahead with the Grand Prix. Tom Esslemont reports.