Croatian elementary school classroom stabbing disaster...Seven-year-old girls and seven others.

A stabbing spree at an elementary school in Zagreb, Croatia's capital, killed one person and injured six others.

A seven-year-old girl died this morning local time after a teenager stormed an elementary school classroom in Zagreb and wielded a weapon.

In addition, a teacher and five other students were injured and taken to a downtown hospital.

The culprit is known to be a 19-year-old young man, but the motive for the crime has not yet been confirmed.

Local media released a video showing children evacuating schools and medical helicopters landing on the playground shortly after the incident.

Prime Minister Andrei Plenkovic called it a terrible incident while presiding over a government meeting, and ordered a thorough investigation.