Drone sightings have disrupted flights at Singapore's Changi Airport for the second time in a week.
The disruption lasted about an hour, with 18 flights delayed, and seven more diverted.
In a statement, Singapore’s civil aviation authority said the disruptions at Changi airport late Tuesday was "due to bad weather and unauthorised drone activities".
"Members of the public are reminded that the authorities take a serious view of errant operations of unmanned aircraft which may pose threats to aviation or endanger the personal safety of others," it added.
The agency said investigations are "ongoing".

Pakistan steps up diplomatic bid to get US-Iran peace talks on track
Philippines vows to arrest fugitive senator wanted by ICC
UN condemns Israeli decision to establish military facilities in East Jerusalem
Canada PM Carney says Israel's treatment of Gaza flotilla members is 'abominable'
Tankers exit Hormuz as Trump, Vance talk up Iran deal prospects