NEW : Prosecutor says faulty planning contributed to deadly bottleneck . NTV : A prosecutor said the accident was caused by a traffic jam on an overpass that had been closed for several days because of construction work in nearby St. Petersburg. The affiliate said attendees were pushing into a tunnel from both directions . Police said no more than 350,000 actually attended .
NEW : Prosecutor says faulty planning contributed to deadly bottleneck . NTV : About 1.4 million people attended the 2010 Love Parade festival . The affiliate said attendees were pushing into a tunnel from both directions . Police said no more than 350,000 actually attended .