One victim is trapped in the bus, says Sandra Nordlund, alarm and control operator, to TT.
According to the police's initial information, it is a crowded bus. P4 Västerbotten reports that 30-40 people are on board, but it could be as many as 65 people, according to SVT Västerbotten . It is unclear whether there are any further injuries.
Six emergency services units are on the scene and more are on their way, including an ambulance helicopter. Police are also on their way.
The accident occurred just before 9 a.m. Saturday morning.
The emergency call stated an estimate that the bus was going 90 kilometers per hour, but this has not been confirmed, says Sandra Nordlund.
The accident has a "very large impact" on traffic, according to the Swedish Transport Administration, which announces that the road will be closed during the rescue work.
There are initial reports that one car was involved in the accident, but it appears to be a single-vehicle accident, according to the emergency services.
