A group of lawyers have demanded immediate revision of the Status of Forces Agreement (SOFA) by the government.

The demand came in the wake of a U.S. court martial's acquittal Wednesday of an American soldier on charges of negligent homicide in an accident that killed two Korean teenage girls in June.

The United States Forces Korea or USFK court martial announced a "not guilty" verdict last Wednesday for Sgt. Fernando Nino, the track commander of a vehicle that struck and killed the two girls last June. The soldier was acquitted after the prosecution was unable to prove beyond all reasonable doubt that his negligence led to the tragic accident.

During the trial, the jury heard evidence that the accident occurred due to a malfunction of communication equipment connecting Nino and his colleague Sgt. Mark Walker, the vehicle's driver.

The majority opposition Grand National Party claimed that the verdict was a result of the USFK's reluctance to reveal the truth, the Seoul government's negative response toward the case, and what the GNP call an unreasonable SOFA.

Some lawyers also pointed out that the verdict is biased because the jury included some of Nino and Walker's colleagues. The lawyers appealed to the government for a fair revision of the SOFA.