Los Angeles - Coma-stricken British driver Justin Wilson remained in a critical condition on Monday after suffering a severe head injury in an IndyCar race at the weekend, a statement said.
The 37-year-old was left fighting for his life after being struck by debris during Sunday's race at Pocono Raceway.
He is being treated in intensive care at a hospital in Allentown, Pennsylvania following the accident, IndyCar officials said in an update released on Monday.
"He remains in critical condition," the statement said.
"IndyCar continues to send its thoughts and prayers to the family and thanks the entire motorsports community for the outpouring of support."
Wilson appeared to have been struck in the head by debris from Sage Karam's car when it crashed in front of him in the final laps on the "Tricky Triangle" of Pocono Raceway during the penultimate race of the season.
Wilson was rushed to a hospital by air ambulance.
Karam was leading when his Chip Ganassi Racing Chevrolet spun on lap 179 of the 200-lap race.
He was able to exit his car and was treated for a foot injury.
However, a piece of Karam's car, possibly the nose cone, appeared to strike Wilson, whose car then swerved into a wall.
Wilson has driven in major US open-wheel racing since the 2004 season.
He was driving a partial schedule in 2015 for Andretti Autosport, making his 174th IndyCar start.
He has seven wins in CART and IndyCar races, his most recent coming at Texas in 2012.
A married father of two daughters, Wilson lives in Colorado with his wife, Julia.