Three students were shot and critically wounded when someone opened fire outside a Des Moines, Iowa, high school on Monday afternoon. The Des Moines Police Department tweeted at 3pm local time that officers were at the scene of the shooting at East High School. According to police, three teenagers were in critical condition at an area hospital. Sgt Paul Parizek, with Des Moines police, said multipole suspects in the shooting have been detained, but he declined to reveal any additional details.