The private plane was on its way to Germany from Spain and was due to land in Cologne, which Dagens news was the first to report.
- They now know that this is a private plane with four people in it, says Johan Wahlström, press spokesman at the Swedish Maritime Administration to SVT.
According to Wahlström, the German and Danish armed forces have been up with reconnaissance plans.
- They have not been able to identify anyone in the cockpit.
- We have a helicopter that is up in the air now.
The Coast Guard has its aircraft 501 in the air.
They also have a larger ship on its way to the site, south of Gotland, says Wahlström.
The Swedish Armed Forces are also monitoring the situation, but do not want to comment on what measures have been taken.
- But of course we are aware of this, says Lotta Börjesson, on-duty communicator at the Swedish Armed Forces.
Picked up at 3pm
The plane, which is a Cessna 551 model, took off from southern Spain just before 3pm today Swedish time.
Since 15:30 Swedish time, it has maintained a steady altitude of around 36,000 feet (11,000 meters) and a speed corresponding to around 670 kilometers per hour.
That according to data from Flightradar.
Reduced speed
At 17.20 it passed at the height of the southern tip of Gotland and then continued in a north-easterly direction over the Baltic Sea.
At 19:30 the plane began to decrease in speed and lose some altitude.
The text is updated