Student held in Slovakia after two people fatally stabbed at high school

Police guard near the scene where two people were fatally stabbed at a secondary school, centre left, in the town of Spisska Stara Ves, eastern Slovakia (Adriana Hudecova/TASR via AP)

An 18-year-old student fatally stabbed two people at a high school in northern Slovakia on Thursday, authorities said.

One other person was in a critical condition, the Slovak rescue service said.