Tap water in Sweden is safe to drink but in case of a suspected contamination, there may be a recommendation to boil the water. These will be in Swedish.
The Swedish Security Service has raised the terrorist threat level from Elevated to High. Here you can find information on how to act in the event of a terrorist attack.
Frostbite occurs if the blood cannot circulate through a frozen part of the body. Most commonly exposed are hands, feet, ears, nose, and cheeks. Here is advice on how to act if someone gets frostbite.