US, Oct. 3 -- South Korea's Ministry of Land, Infrastructure, and Transport announced on Thursday that it has fined Saudia Airlines, Qatar Airways, and eight additional domestic and international carriers for breaching the nation's aviation regulations.

Saudia received a penalty of 100 million won (about $75,500) for ceasing its flights between Incheon and Riyadh without the requisite authorization from aviation authorities.

Although the Saudi Arabian airline had received permission to conduct three weekly flights on this route from March to October, it has not operated any flights since June 27.

"The strict actions were taken due to their infringement of domestic regulations and the resultant inconvenience to customers. The government...