Just before half past seven on Saturday morning, a frontal collision took place on country road 263 at the intersection Vretvägen Sigtunavägen in Håbo municipality.
It was a car and a horse transport that collided.
At least two people are very seriously injured.
- One person was taken to hospital by ambulance helicopter, says police spokesman Daniel Wikdahl.
The road was closed completely after the accident.
- The horse seems to be in good health, but there is a veterinarian on the way there to ensure that as well, says management officer Jonas Fröjmark at rescue center Mitt.