Flight UK25 from Delhi to Frankfurt, carrying over 240 passengers, was diverted back to Delhi due to a non-specific bomb threat after Afghanistan denied overflight permission. The aircraft landed safely at 1620 hours after circling in Pakistan airspace.

When Afghan airspace officials were notified of the 'non-specific' bomb threat, they refused permission for the Vistara flight to pass through

Vistara had reported receiving security threats for six of its flights, including UK25, amid a week that saw nearly 100 bomb threats targeting various flights, most of which were later determined to be hoaxes.