Date for sighting is between 2009-2011 and aprox between the time 22:15-23:00 (Stockholm time).Was on my way home from my job in Vimmerby and when I went past the Hultsfred Airfield, I saw some kind of craft that stood still a bit in the air above the airfield. Was curious and decided to take me a little closer, then turned onto the road up to the control tower and turned the car at the tower.I saw a black oval object (Figure 1) hanging a few meters above the ground, only about 100 meters from my position. The color was black, matte, reflected very little ambient light and was about 10 meters in diameter. The lighting in the area of the object was in was poor. No traffic at the airport, no activity in the tower. I think the airport was disused at this time. No sound was heard. I observed this for about three minutes and did not arrive at what it could be. I continued to go home to Målilla. I'm going out on the road 34, and run past the first roundabout after the airport and when I look in the rearview mirror so fly something black, shaped like a cone with the apex downwards and two green flashing light on the edges (Figure 2) past the roundabout straight across the road I travel and only about 150-200 meters behind me.During the rest of the journey, I see nothing strange. Once I arrive in Målilla and drive towards the center, so I look to my surprise another similar object or perhaps the same that crossed the roundabout in Hultsfred now fly about 50 feet in the air and follows roughly road 34 in a southerly direction ( Figure 2), the rate was estimated at about 30-40 meters per second.