Cippo

14:18:02 CEST The six hit sector 11, with the peloton breathing down their necks. Sagan is also up there.

14:17:16 CEST Boonen flicks his elbow to wave Thomas through but he seems frustrated that the move is about to fail.

There are six riders in the Boonen move but the gap is falling. It is just 10 seconds now.

Behind BMC, Team Sky also has four riders up front, with Boasson Hagen and Trek has several teammates to help Cancellara.

57km remaining from 257km After 200k of racing, the Boonen attack has 22 seconds but the Belgian does not seem convinced it is the right strategy.

Is Boonen sacrificing his chances for a teammate or trying to take control of the race?

There are five BMC leading the chase behind.

The riders hit the Orchies sector, number 12, and so Boonen tries to split the group.

There are 12 riders in the move. The peloton is only 20 seconds behind, with BMC leading the chase.

Matthieu Ladagnous (FDJ.fr) is also in the front group. They are now the front group after catching the trio up front.

Fabian Cancellara and Bradley Wiggins are both in the peloton despite crashes and punctures.

Boonen has joined what is a big group of adventurers. Thomas is in there too.

14:03:49 CEST A Cofidis rider also ends up in the ditch. This is Paris-Roubaix.

Boonen is going across to some earlier attackers as a crash takes down Luca Paolini (Katusha).

70km remaining from 257km John Murphy (UnitedHealthcare Professional Cycling Team) is no longer in the break, which is down to three riders.

The attack is pulled back but other riders try and Hushovd goes again. He looks strong.

Race radio has announced that Kristoff has retired. His race is over.

There are still a lot of riders in the main peloton and so the race could come back together. Some chasers have already caught the Boonen move and Thor Hushovd (BMC) is trying his hand off the front.

Sagan is stuck behind, while Greg van Avermaet (BMC) is leading the attack.

13:40:32 CEST There are ten riders in a front group. Everyon e else is scattered across the pave.

Behind a crash on sector 17 of pave scatters the peloton for a moment.

The race has been slowed by a level crossing. Boucher, who punctured in the Forest has been stopped.

The Forest of Arenberg has caused little damage with no major crashes or splits. This year's race is still wide open. However Kristoff is in a chase group, as some attacks go off the front of the peloton.

The peloton is leaving the Forest and taking on bidons. The riders are also studying who is well-placed and who is suffering.

Kristoff also needed a wheel from a teammate and is at the back of the peloton.