An "unusually large" meteor has briefly lit up the night sky over southern Norway, creating a spectacular sound and light display.
There were no immediate reports of injuries or damage.
Reports of sightings started arriving on Sunday around 1:00am local time, with the phenomenon being seen as far north as Trondheim accompanied by a loud bang.
A web camera in Holmestrand, south of Oslo, captured a fireball falling from the sky and erupting into a bright flash lighting up a marina.
The Norwegian Meteor Network was analysing video footage and other data to try to pinpoint the meteor's origin and destination.
Preliminary data suggested a meteorite may have hit Earth in a large wooded area, called Finnemarka, just 60 kilometres west of the capital, Oslo, the network said.
"This was crazy," the network's Morten Bilet, who saw and heard the meteor, told Reuters.
By Sunday afternoon no debris had been found and given the "demanding" location, one could take "some 10 years" searching for possible meteorites, Mr Bilet said.
The meteor travelled at 15-20 kilometres per second and lit up the night sky for about five to six seconds, he said.
The summer sky was dark, with the days starting to get shorter from the end of June.
Some eyewitnesses also said they felt a stronger wind blow with the event also causing a pressure wave, Mr Bilet said.
"What we had last night was a large rock travelling likely from between Mars and Jupiter, which is our asteroid belt. And when that whizzes in, it creates a rumble, light and great excitement among us [experts] and maybe some fear among others," Mr Bilet said.
There were no reports of damage or people being particularly frightened, Mr Bilet said, adding that for those nearest it was likely more of a "spooky" event.
A meteor that exploded over central Russia near the city of Chelyabinsk in 2013 caused a shockwave that smashed windows, damaged buildings and injured 1,200 people.
Reuters
