Helsingborg have confirmed that they are investigating crowd trouble after Henrick Larsson's son was attacked on the pitch following the club's relegation at the week-end.
Video footage posted on social media showed 19-year-old striker Jordan Larsson being confronted by a group of hooded Helsingborgs supporters at the end of their 2-1 defeat to Halmstad on Sunday.
Thugs were also seen trying to confront manager, Henrik Larsson, as he made his way on to the pitch.
O #Helsingborg,clube histórico e com enorme palmarés na Suécia,desceu de divisão pela 1ª vez na história e os adeptos visaram os jogadores.. pic.twitter.com/4XbcrXGZYy
— Fair Play (@FairPlaypt) November 20, 2016
A statement from director Mats-Ola Schulze on the club's website said: "The events that took place after today's game were unacceptable. Helsingborgs IF strongly reject this because it is contrary to our values . We will return with a statement about this when we have created a comprehensive picture."
Manager Larsson earlier said he understood the fans' anger but would be more aware of his safety in the town.
He told the Swedish press: "I understand their frustration. That's why I went over there too. It was not the smartest thing for me to do.
"I did not see that they were attacking Jordan, but if I had I would have gone in there.
"I live and work here in town. I will look over my shoulder a little more and make sure not to walk alone in town.
"If they (hooligans) come, they come. We have many dogs at home."