By Daily Mail Reporter
A demonstration by more than 35,000 protesters marching for 'jobs, justice and climate' ahead of the G20 summit passed off peacefully in London today.
But there are fears that trouble could flare when further protests take place as world leaders gather in the capital next week.
Thousands of police from six forces were drafted in to London today to assist the Metropolitan Police.
The Met police line a pavement in Whitehall, as they observe secure a protest march
Protesters were calling for action on poverty, climate change and jobs ahead of next week's G20 summit in the Docklands.
But they kept a relatively low profile as campaigners from across the UK and around the world braved rain showers to take part in the first of a week of demonstrations around the G20 summit.
The massive police operation was launched as officers warned of an "unprecedented" threat posed by the protests.
But by early evening as a rally in Hyde park ended there were no signs of problems, backing up the organisers' earlier pledge that events would not turn violent.