FRANKFURT, June 23 (Xinhua) -- At least 25 people were injured in a tear gas attack in a southwest German city on Thursday, according to local German media report.

An armed man entered a cinema in the German town of Viernheim. The attacker fired in the air and launched a tear gas attack, leaving at least 25 people injured, according to local TV reports.

The attacker died and the motive of the attack is not known yet,  said the reports.