NG. 17.45 GMT. G8 protesters bound for London today are being told to stay put, says Network Rail.
Although mainline rail services are continuing to run as near normal service as possible, people are asked not to make any unnecessary journeys into London today. King's Cross station, a natural depot for trains to and from Scotland, is likely to remain closed 'for some time'. GNER trains are currently terminating in Peterborough.
Along with the closure of the council-provided campsite in Edinburgh today as planned, the blasts have left many activists stranded at a time when they are facing increased hostility from locals. Much of the antagonism has been whipped up by the negative media coverage of yesterday's blockades and isolated clashes with police earlier this week.
London has been hit by four explosions that have killed at least 33 people on the London Underground, an unknown number on a double-decker bus, and injured more than 350 others: between Aldgate East and Liverpool Street tube stations, between Russell Square and King's Cross tube stations, at Edgware Road tube station and on the 30 bus at Tavistock Square (from Hackney to Marble Arch).
The blasts have disabled the London Underground until at least Friday, and buses are only now running through Zone 1. Security has been heightened throughout central London. All West End shows have been cancelled tonight, a measure not believed to be undertaken since WW1.
Prime minister Tony Blair who has now returned to Downing St from Gleneagles, promised the 'most intense police and security service action to make sure we bring those responsible to justice'. According to the BBC, the officer in charge of policing the G8 summit said many of the 1,500 Metropolitan Police officers in Scotland would be urgently redeployed to London.
A group calling itself 'The Secret Organization of al-Qaeda of Jihad Organisation in Europe' claimed responsibility for the four blasts.
Activists everywhere are fearing a backlash against ethnic minority, Muslim and refugee and asylum seeker communities.