Photo gallery: Sweden school attack

A woman lights a candle at a makeshift memorial site at a school in Trollhattan, southwestern Sweden, on Oct. 22, 2015, where a masked man armed with a sword attacked students and staff members.

A pupil and her parent leaves a primary and middle school in Trollhattan, Sweden, after a masked man attacked people with edged weapons, on Oct. 22, 2015.

Police cordon off the scene of a primary and middle school in Trollhattan, Sweden, after a masked man attacked people with edged weapons, on Oct. 22, 2015.

Police spokesman Thomas Fuxborg speaks to the press outside a primary and middle school in Trollhattan, Sweden, after a masked man attacked people with edged weapons, on Oct. 22, 2015.

Police work at the scene of a primary and middle school in Trollhattan, Sweden, after a masked man attacked people with edged weapons, on Oct. 22, 2015.

Swedish police officers give information to people as they secure the area outside a primary and middle school in Trollhattan, southwestern Sweden, on October 22, 2015.

Emergency services attend the scene after a masked man attacked people with an edged weapon, at the Kronan school in Trollhattan, near Goteborg in western Sweden, Thursday Oct. 22, 2015.