Police at times struggle to contain protesters
It's 4:05pm with less than an hour to go to the parliamentary vote. There have been serious clashes between protesters and police just outside Westminster Abbey.
I saw protesters throw paint, sticks and other objects at riot police and mounted police who at times struggled to contain them.
One policeman has been taken away on a stretcher and one woman was knocked to the ground by police with batons, but was able to walk away just five minutes later.
It has calmed down now as those inside Parliament Square realise they are trapped, but there is a lot of anger amongst the protesters. Police are making sporadic arrests.
It is fair to say that any distinction between so-called politically motivated groups and the bigger mass of quite young teenage students, if it ever existed, is pretty indistinct.
As I write this another policeman is being carried away by stretcher and there are police on horses charging in Parliament Square.