In a statement, Interior Ministry denied the reports of arresting Sharm el-Shiekh International Airport employees in connection with the bomb attack that brought down the Russian plane in Sinai last month, killing all 224 people on board.
Earlier, media reports said that 17 people are being held by Egyptian authorities and two of them are suspected of helping whoever planted the bomb on the Metrojet (Kogalymavia) Airbus A321 plane at Sharm al-Sheikh Airport.
Russia's Federal Security Service announced a USD 50 million reward for information leading to arrest of the criminals.
A militant group affiliated to ISIS had claimed responsibility for the plane attack that killed all passengers, mostly Russian tourists over Sinai.
An investigation by media found that Sharm el-Sheikh airport had many gaps in security, such as lax searches at the entry gate and poor quality of scanning devices.