Desiree Navarro/Celebrity Photo
08/01/2008 AT 08:40 PM EDT
's left hand was "crushed" in a weekend traffic accident
and runs the risk of infection, the actor's lawyer said Friday.
"The force of (the) impact immediately flipped Shia's vehicle over, and, as a result, Shia's left hand was crushed," said his attorney Michael Norris in a statement.
"Shia underwent four hours of surgery on Sunday and has been recovering since then," the statement continues. "His doctors remain hopeful that he will fully recover, but due to extensive surgery and the nature of the injuries, there remains a substantial risk of both infection and other complications."
LaBeouf, 22, suffered the injuries when his truck collided with another vehicle in West Hollywood at about 2:30 a.m. Sunday.
"We have also received information that suggests that the other driver may have been traveling upwards of 50 mph, and that said driver may not have been looking forward at the time of the accident," the lawyer says.
On Tuesday, a Los Angeles County sheriff's spokesman said that LaBeouf, whose passenger was Transformers 2
costar Isabel Lucas, may not have been at fault
for the crash. No one was seriously injured in the wreck.
"We have strong evidence that the other driver ran a red light," sheriff's spokesman Steve Whitmore said. "The case is still under investigation."
Shortly after the accident, LaBeouf was cited for misdemeanor DUI because "he was showing obvious signs of intoxication from the smell of alcohol coming from his breath," sheriff's Sgt. Scott Wolf told PEOPLE.
The actor has yet to be formally charged with any crime.