Four people injured in explosion at MU

Monday, June 28, 2010 | 2:59 p.m. CDT; updated 5:11 p.m. CDT, Monday, June 28, 2010

COLUMBIA — Four people were injured — one critically — when a 2,000-pound hydrogen cylinder exploded Monday at Schweitzer Hall at MU, near the intersection of College and University avenues, according to the Columbia Fire Department.