In the 90th minute, with the score at 0-1, Kevin Höög Jansson stepped forward and scored 1-1 for the home team.
It was good pressure, I got a good hit, says Höög Jansson in Max after the match.
In stoppage time, in the 96th minute, Vito Hammershöy-Mistrati headed in Laorent Shabanis lob over Johan Brattberg in the VSK goal.
Sports are cruel, today we experienced it. We have to blame ourselves, we should have handled the last goal better, says Västerås coach Kalle Karlsson in Max.
The away team's goal was scored by Henry Offia after 50 minutes of play.
Västerås is last in the table, Norrköping is in 11th place.
In the parallel match at Örjans Vall, between Halmstad and Malmö FF, the final result was 1-0 to the away team.
MFF's goal was scored by Sergio Peña, who made a solid finish from outside the penalty area. HBK goalkeeper Tim Erlandsson stretched for the ball but didn't even get his fingertips on Peña's well-placed shot.
Malmö now leads the Allsvenskan six points ahead of Djurgården, who have one less match played. Halmstad is in 12th place.
Later in the evening, IFK Göteborg and Värnamo met. A match that ended 0-0. For IFK Göteborg, important player Arbnor Mucolli was forced to leave the match with an injury in the first half.