Laser show blinds audience in Russia

More than 30 people were blinded by a laser show at a Russian music festival and some may lose their sight permanently.

Russian newspaper Kommersant said some lost up to 80% of their vision after attending the Aquamarine Music Festival on July 5.

The outdoor festival was held in the Vladimir region east of Moscow.

Kommersant said most of the injured concertgoers sought treatment at two Moscow hospitals.