LOS ANGELES, April 10 (Xinhua) -- Two people were killed and two others were injured in a shooting incident occurred on campus of North Park Elementary School in San Bernardino of California on Monday.
Local KESQ TV station reported two adults were killed while two injured students had been sent to hospital.
According to NBCLA, the incident happened at 10 am, two students and a teacher were shot and school district spokesperson said the tragedy might stem from domestic violence involving a teacher.
"We believe this to be a murder suicide. Happened in a class room, two students have been transported to the hospital." Jarrod Burguan, Chief of San Bernardino Police Department posted on his twitter at 11:02 am.
He also said that preliminary information was that 4 victims were being treated and "suspect is possibly down as well."
Students in the school were evacuated after the incident.