n chilling videos emerging online, the sound of gunshots rings out around the school campus, while others show bodies lined up on stretchers.

Pupils can also be seen running for their lives from the school as heavily armed cops scour the corridors.

Police have given a news conference in Graz, confirming that several people have been killed and others wounded, including pupils and teachers, in the high school attack.

Cops also confirmed that the school has now been secured and there is no further danger.

Police, who evacuated the building this morning, deployed their specialist Cobra tactical unit, which handles attacks and hostage situations.

Some 158 paramedics were at the scene today, while another 31 crisis intervention staff and 65 emergency vehicles were operating.

Students who managed to escape