The alleged crime took place in an apartment in Uppsala, a city about 50 miles north of the capital, Stockholm.
In a statement, the Uppsala County police said they were alerted at 8:24am Sunday.
"This rape was broadcast live on a Facebook group and numerous people have been in touch regarding seeing this broadcast," they said.
"The police went to said apartment, and in the apartment were three men and a woman. The three men were detained on the spot and then arrested by prosecutors at 2:30pm on Sunday."
They said they were treating the case…