GRAZ, Austria: Austria will observe a national day of mourning and a minute’s silence on Wednesday after a former student shot dead 10 people at a high school in an unprecedented case of gun violence that stunned the Alpine country. The 21-year-old shooter acted alone and took his own life in the toilet at Dreierschuetzengasse high school in Graz, police said. Investigators found a good-bye letter addressed to the suspect’s parents during a search of his residence, but it included no clues about his motive.

Le vittime includono minorenni e almeno un insegnante o membro dello staff; diversi feriti, alcuni gravi

L’attentatore austriaco si sarebbe suicidato, 30 i feriti

El agresor es un austriaco de 21 años que se ha quitado la vida, según la policía. Once personas siguen hospitalizadas tras sufrir heridas por disparos

Un ex studente ha sparato contro ragazzi e insegnanti in una scuola e poi si è suicidato: è la più grave nella storia recente dell'Austria

Nine killed in Graz school shooting, including suspected perpetrator; police believe assailant acted alone, situation secured.

Quindici i feriti. Il giovane si è poi tolto la vita in bagno: «Era vittima di bullismo»

At least eight people are reported to have been killed in one of the country’s worst mass shootings.

At least ten people are believed to have been killed in a school shooting in the southern Austrian city of Graz.

LIVE UPDATES: Follow MailOnline's live coverage as police in Austria respond to reports of a school shooting in the city of Graz.

Ten people have been killed and dozens more injured after a pupil opened fire on an Austrian school, in what has been described as one of the worst mass killings in the country's…

Almeno cinque persone sono state uccise durante una sparatoria avvenuta in una scuola a Graz, in Austria.

Presumed shooter and several students killed in attack in city of Graz, says mayor

According to the local police, the attacker acted alone, and his motives remain unclear

The suspect is among the dead, police confirm, after rare school shooting rocks nation.

At least nine people were killed and dozens injured after a gunman opened fire at a high school in the Austrian city of Graz, authorities said.

Un 22enne l'aggressore che ha sparato 40 colpi. Ue, 'sparatoria scioccante, siamo al fianco dell'Austria' (ANSA)

At least 10 people have died in Austria’s deadliest mass shooting in the country’s second largest city.

Several people have been killed in a mass shooting at a high school in Graz, the country’s second-largest city, police said.

GRAZ - Almeno dieci persone, in gran parte studenti e almeno un adulto, sono morte in una sparatoria in una scuola secondaria a Graz, nel sud dell'Austria. L'attentatore sarebbe…

An einer Schule in Graz hat ein ehemaliger Schüler neun Menschen erschossen. Auch der Tatverdächtige ist tot. Zwölf Menschen wurden verletzt, zum Teil schwer. Die Dimension der…