Jules Bianchi's family has denied reports the French driver could soon be transferred from the hospital in Japan.
This Sunday will mark four weeks since the Marussia driver's life-threatening Suzuka crash, and the family announced in a new statement late on Thursday that Bianchi is still in a "critical but stable" condition.
Although absent in Austin this weekend, the statement was issued by Marussia, who despite now being operated by administrators is "supporting the family by facilitating its communication".
The family acknowledged the groundswell of support for Bianchi but said there is "no new information to give".
But media reports suggesting Bianchi, 25, could soon be moved from the Mie hospital - perhaps to Europe - were denied.
"At this time his fight will continue here in Yokkaichi," said the family. "We are taking things step by step."