- Something flared up there, but the next ship caught the passengers and then the situation was calm, says Henrik Palmér at Greater Stockholm's local traffic (SL) press service.

This weekend's heat wave has led to "an incredible number" being left in the major ports on the mainland on Saturday, he says.

- A lot of people want to go out into the archipelago in this weather, but unfortunately you have to say no to many. You drive all the ships you have, but unfortunately it will be difficult for everyone to keep up.

- We have restrictions on how many we can take on the boats, due to corona. We want to avoid congestion, and are much stricter in terms of how many people are allowed on the boats.