Police in Austria were hunting for clues on Wednesday after a gunman opened fire at his former high school a day earlier, killing nine students and a teacher in a deadly spree that stunned the country.

At least 10 people are dead following a mass shooting at the BORG Dreierschützengasse high school in Graz, Austria, according to state police.Among the dead were eight students, one adult, and the suspected gunman in the deadliest mass shooting in Austria’s postwar history.

The suspect in the violent Austria school shooting had failed to pass the test for military service and was a fan of online first-person shooting games

A school shooting in Austria left at least nine people dead and dozens more injured, authorities said, in one of the worst such incidents in the country’s history.The death toll from the shooting, which took place on Tuesday morning in Austria’s second biggest city of Graz,