Twenty-eight-year-old Dicarlo Bennett, a Servisair employee, was arrested late Tuesday and booked for investigation of a destructive device near an aircraft. He is being held on $1 million bail.
A law enforcement official briefed on the investigation who wasn't authorized to speak publicly says Bennett allegedly took the dry ice from a plane and placed it in two locations Sunday night.
Police had previously said they didn't believe the explosions were an act of terror but could be the work of a disgruntled employee.
No one was injured in either incident.