Two suspected student fees protesters have been arrested trying to get into Buckingham Palace.
The two men, aged 26 and 20, were arrested by Scotland Yard officers as they apparently tried to talk their way inside.
The incident took place at the staff entrance to the palace, on Buckingham Palace Road, early yesterday morning.
Sources said the men were carrying several political banners but it is not clear what their intentions were.
They had travelled into the capital ahead of a meeting of the National Campaign Against Fees and Cuts.
The men were held as suspected trespassers on a site protected under the Serious Organised Crime and Police Act 2005.
Other protected sites include around 30 royal, government, military and parliamentary properties across England.
Police have begun preparations for a fresh wave of protests against proposals to increase the cost of higher education later this month.
A Metropolitan Police spokesman said: "At approximately 8.15am yesterday, two men aged 26 and 20 were arrested under section 128 of the Serious Organised Crime and Police Act 2005."