Åsa Fallsten and her friend were out walking in Ögårdsparken in Malmö. They spotted a woman behaving strangely by a tree in the park.
"We went up to her and she was very rude to us and we could see that there were buns and shards of glass there," says Åsa Fallsten.
Åsa and her friend followed the woman and called 112, which Dagens Nyheter was the first to report. She says that the police were quickly on the scene and arrested the woman.
In Malmö, in recent years, one or more people have terrified dogs and dog owners by placing dumplings of dough with sharp objects in them.
"I hope this will end now, so you can walk your dog without worrying," she says.