Swedish police investigate online links after a sword attack at a high school killed one girl and injured others in Fagersta. Read more at straitstimes.com. Read more at straitstimes.com.

"The investigators are looking into various online communities which might have egged on the suspect to carry out the attack," said a police source.

A sword attack at a Fagersta high school leaves one person dead and three wounded, with two in serious condition.