An Air India Boeing 787-8 flight headed for New Delhi returned to Hong Kong shortly after takeoff Monday because of a "technical issue," Indian media reported.

At least four separate flights encountered technical issues or emergencies within days of the Ahmedabad Air India crash, forcing sudden flight diversions and raising fresh concerns.

A Delhi-bound Air India Boeing 787-8 Dreamliner flight has been forced to turn back on Monday after the aircraft’s pilot said the jet was facing technical issues mid-air. The Air India flight, AI 315, was operating from Hong Kong to Delhi and had departed from the Asian city at 11.59am local time for its scheduled destination in New Delhi.

The investigation into Air India flight 171 crash opens up questions into the many concerns surrounding Boeing's 787.

The accident happened just weeks after the company cut a deal with the U.S. government to avoid taking criminal responsibility for a pair of deadly crashes in 2018 and 2019.