MONTREUX, Switzerland — Swiss police say three adults and a child have died and a teenager was seriously injured in a fall from a seven-story residential building in the lakeside town of Montreux.
Police said the victims were all French citizens and members of the same family.
They said officers had tried to execute a warrant in connection with the home-schooling of a child shortly before Thursday's incident.
In a statement, police identified the people killed as were the 40-year-old father, his 41-year-old wife, her twin sister, and the couple’s 8-year-old daughter.
The couple's 15-year-old son was seriously injured.
Police say authorities have opened an investigation “to determine the exact circumstances and reasons for this tragedy.”