SA Airlink has denied reports on social media that an aircraft with 72 passengers and 4 crew members aboard was hijacked en route from Cape Town International Airport to Pretoria's Wonderboom airport on Monday. The aircraft was in the air when rumours flooded social media that it had been hijacked.The airline posted messages on its Twitter account saying: “We have been in contact with our pilots & can confirm that no hijacking has taken place. We are investigating the matter further.”In a statement on its website, Airlink said the hijack alert for flight SA8678 was an anomaly, with the aircraft emitting the anomalous alert through its transponder."The passengers, crew and aircraft are all safe and on the ground at Wonderboom Airport where authorities have held the aircraft as a prescribed precautionary measure while they verify that all is in good order."Airlink will assist the investigating authorities with their inquiry, which is a mandatory step following such incidents. Airlink has also initiated an internal investigation into the erroneous transmission," the company said.Actor Roelof Storm‚ who was aboard the aircraft‚ said in Afrikaans on twitter that the aircraft had been parked on the runway for about 70 minutes and there was definitely no hijacking.asyncSeems the SA Airlink flight has a problem on the taxiway but police are present !! pic.twitter.com/3nrtOPneWo — Craig Nieuwenhuizen (@Craig_news) July 11, 2016async..