(CNA): The Republic of Singapore Air Force (RSAF) scrambled F-15SG fighter jets on Tuesday night (Oct 15) after a bomb threat on an Air India Express flight.

The airline had received an email that there was a bomb on board flight AXB684 that was bound for Singapore.

"Two of our RSAF's F-15SGs scrambled and escorted the plane away from populated areas, to finally land safely at Singapore Changi Airport at around 10.04pm tonight," said Defence Minister Ng Eng Hen in a Facebook post.

"Our Ground Based Air Defence (GBAD) systems and Explosive Ordnance Disposal (EOD) team were also activated. Once on the ground, the plane was handed to the Airport Police. Investigations are ongoing.

"Many thanks to the dedication and professionalism of our SAF and Home Team that keep us safe in our homes, even when threats exist around us."