BELGRADE, December 20. /TASS/. A seven-year-old child injured in a knife attack at a school in the Croatian capital of Zagreb has died in the hospital, Acting Health Minister Irena Hrstic said.

"The lives of another five injured people are not in danger; emergency services continue to work at the site of the incident. The child that was killed was seven years old," Croatia’s HRT broadcaster quoted the health minister as saying.

According to Hrstic, the attacker is an adult.

The HINA news agency reports that a teacher, who also suffered injuries in the attack, has been taken to the hospital in critical condition. Doctors are fighting to save her life.

The TV channel said earlier that the attacker could be a student at the school; he was detained by police.