The alarm came at 19:15 to SOS Alarm.

- It must be a person on a windsurfing board who fell into the water just outside Rödön in Storsjön, says Ola Nilsson on SOS Alarm's event information to SVT Nyheter Jämtland.

- According to the alarm, there must be two people on the windsurfing board, and at least one has fallen in and they drift quickly out of land, he says.

The rescue service, sea rescue, ambulance and police are alerted to the place near Rödösundet between Rödön and Frösön.

It is blowing hard on Storsjön at the moment and it is cold in the air.

- There are two people in the water, says Henrik Jönsson, internal commander of the Rescue Service Jämtland. They drive quickly towards Bynäset on Frösön. We have rescue services from both Krokom and Östersund on site and also the sea rescue is on site.

According to information, they must both be dressed in wetsuits.