Jules Bianchi remains "critical but stable" in hospital following his accident at the Japanese Grand Prix earlier this month, his family said yesterday.

The 25-year-old Marussia driver suffered a diffuse axonal injury to his brain, where the damage is more widespread, after crashing into a recovery vehicle at Suzuka almost four weeks ago. The Frenchman then underwent surgery upon his arrival at the Mie General Medical Centre in Yokkaichi.

His condition remains unchanged almost a month later, with Bianchi's family offering an update through a statement published on the Marussia F1 Team website. "It will be four weeks this coming Sunday since Jules' accident and he remains in the Mie General Medical Center," the statement read.

"His condition continues to be classified by the medical professionals here as critical but stable. Although we have no new information to give, we recognise that there are a huge number of people supporting Jules and willing him on in his fight."

There had been suggestions that Bianchi would be moved to Europe to continue treatment, but his family confirmed he will instead remain in Japan for the time being and will "continue to fight".

"Jules does indeed continue to fight," the statement continued. "Although there have been some reports suggestive of plans for Jules' treatment, at this time his fight will continue here in Yokkaichi. We are taking things step by step.

"Once again, we would like to offer our sincere appreciation for the patience and understanding being shown towards our family at this very difficult time. We will provide a further update when it is appropriate to do so. In the meantime, thank you to everyone who continues to keep Jules in their thoughts and prayers."

Following an investigation into the cause of the crash, Charlie Whiting, the FIA race director, concluded there was "a perfect storm" of conditions. Although the FIA is due to bring in new safety measures, Whiting stated with regard to the incident "nothing could have been done better".