US President Donald Trump left Turkey on Wednesday evening on the old presidential plane instead of the Boeing 747-8 gifted by Qatar, as a security precaution after the resumption of hostilities with Iran, according to people familiar with the arrangements, who said the decision came 'based on a recommendation from the US Secret Service.'

The New York Times reported that this change raises questions about whether the new plane, which Trump had pushed to be ready as quickly as possible, had undergone sufficient security upgrades over the past year.

Lawmakers and some officials had expressed concerns that the rapid timeline may not have allowed for the installation of an advanced missile defense system and other necessary modifications to protect the president.