According to SOS Alarm, the trailer must be loaded with paper.
Four units from the rescue service are on site.
No person should have been injured in connection with the fire.
During the firefighting work, traffic was diverted via central Gävle.
Salvage of the truck trailer is expected to last until 10 pm during the evening and the road will, according to the Swedish Transport Administration, be closed in a northbound lane during parts of the salvage work.
- We do not know why it has started to burn, but it was a tire that burned from the beginning.
They were available and disconnected the truck from the trailer that caught fire, says internal commander Håkan Hjelm at Gästrike rescue service.
The rescue service is now ready on site, but according to the Swedish Transport Administration's website, the impact on traffic in northbound lanes is expected to continue until 10 pm.
- They have to unload paper bales that have burned and salvage the trailer, says Håkan Hjelm.