Prime Minister Lars Loekke Rasmussen says he will resign on Thursday from the post he has held since 2015.
Polling stations open at 8 am (0600 GMT) and close at 8 pm, followed immediately by two exit polls. The focus will be on challenges in the Nordic country's welfare model and on two new far-right anti-immigrant parties.
A body retrieved from the Thames river is believed to be that of a French national who was killed in the attack over the weekend.
Subscribe to our Youtube channel for all latest in-depth, on the ground reporting from around the world.
Copyright © 2023 TRT World.