A teenager armed with two knives has gone on a rampage at a high school in the US state of Pennsylvania, injuring 19 students and a security guard.
The 16-year-old student was taken into custody at Franklin Regional High School in Murrysville, a suburb of Pittsburgh, police said.
All are expected to survive.
Man in police custody after 4 co-workers stabbed in Toronto office
A male employee is in police custody following a stabbing that left four of his co-workers injured in uptown Toronto, police said.