Saudi Arabian Airlines (Saudia) has said air traffic to and from the Riyadh's King Khaled International Airport were delayed for four hours on Saturday evening, due to a technical glitch in the main power exchange station, Arab News has reported. "The technical problem occurred at 8:26 p.m. on Saturday. The power exchange station belongs to the Saudi Telecom Co (STC) and it feeds all operational devices at the airport," the carrier said. Saudia flights were resumed by 12 midnight, a Saudia official said. "All flights are now operating fine and on time," the official said.