All the reports (and I looked at many) quote the same release from the transport minister.
I found one report gave a different altitude but none giving any additional details.
None give any info at all about the nature of the damage or any indication of why it was claimed that whatever the plane hit was a drone.
Planes hit things all the time, usually birds, sometimes bats and very rarely, drones.
This might have been a drone ... but it would be good to have some actual info to show we aren't just taking the word of someone that thinks it might have been a drone.
It's very sloppy journalism to give the story without any actual information.
Here's a thread about the outcome of an investigation into a widely reported incident where the pilot believed he'd hit a drone in Australia.
Possible Drone Strike - investigation outcome