"We are investigating a serious crime," police spokesman Anders Bryngelsson tells TT.
According to Bryngelsson, a technical investigation of the suspected crime scene is underway.

A police operation is underway at the Swedish Migration Board's return center in Märsta, north of Stockholm, Dagens ETC reports.
"We are investigating a serious crime," police spokesman Anders Bryngelsson tells TT.
According to Bryngelsson, a technical investigation of the suspected crime scene is underway.