A woman who had faced arraignment in the deaths of two Boston pedestrians has been released without charges as prosecutors say they are doing more investigation.

Jake Wark, spokesman for the Suffolk district attorney, said Tuesday that 26-year-old Ghuzlan Alghazali was released without charges and no complaint was issued against her. She had been scheduled for arraignment on charges including motor vehicle homicide and unlicensed operation of a motor vehicle.

Twenty-eight-year-old John Lanzillotti and 27-year-old Jessica Campbell died Saturday night after police said they were struck by a car that had crashed with another vehicle.

Prosecutors said they are trying to determine who was driving and need to do "further canvassing and evidentiary analysis."

Alghazali's lawyer, John Seed, says his client is "grief stricken" over the loss of lives, but that there are "conflicting reports" about what happened.