The Swedish police said on Tuesday that they were investigating reports that dozens of young women and girls were sexually assaulted at two music festivals in Sweden last weekend.

The police said there had been five reports of rape and 12 reports of sexual molestation at the Bravalla Festival in Norrkoping, about 100 miles southwest of Stockholm, while 32 sexual assaults had been reported at Putte i Parken, a music festival in Karlstad, about 190 miles west of Stockholm.

Girls and women at the festival in Karlstad said they had been groped by boys and men, Inspector Leif Nystrom of the Karlstad Police Department said in a phone interview. Most were under 18 years old, and three were under 15.

“These were reports of women being touched in unwanted places, such as on their breasts and on their bottoms and inside their underwear,” he said.