Former transport minister Anthony Loke has urged the government to make public the outcome of an investigation into a Malaysia Airlines flight that passengers reportedly said was momentarily in a “diving” position.

Malaysia Airlines Flight MH2664 departed from Kuala Lumpur on April 3 and was bound for Tawau but later turned back to Kuala Lumpur International Airport (KLIA) due to a “technical” issue.

“The incident must be thoroughly investigated by...