Police in Prague, Czech Republic, are reporting gunfire at the Faculty of Arts at Charles University.
Based on preliminary information, there are casualties and injuries at the scene.
The police have stated that they have neutralized the attacker, and the entire building is being evacuated.
Residents of Prague are urged to stay in their homes, according to the police.
Authorities have closed off the entire Jan Palah Square where the faculty building is located, as well as the surrounding area.
Charles University is in the heart of Prague, approximately 500 meters from the historic Charles Bridge – a major attraction for tourists.