Six junior high or high school students were shot Tuesday after they got off a school bus, and two were critically hurt, police said. Gunshots rang out in northeast Las Vegas just before 2 p.m., Officer Bill Cassell said. Six young people were transported to area hospitals. Four had minor gunshot injuries and two were in critical condition, Cassell said. At least two people are believed to have taken part in the shootings, he said. Police were not saying whether the shooting suspects were on foot or in a vehicle.