LOS ANGELES _ Two adults were killed and two students were injured Monday at an elementary school in San Bernardino in what officials are describing as a murder-suicide.
The students were airlifted to local hospital and their conditions are unknown, said San Bernardino Police Lt. Vicki Cervantes.
One of the adults involved in the shooting was a teacher, according to San Bernardino Unified School District spokeswoman Maria Garcia.
"We believe this to be a murder-suicide," San Bernardino Police Chief Jarrod Burguan tweeted. "Happened in a class room. Two students have been transported to the hospital."
The gunfire occurred just after 10:30 a.m. at North Park Elementary School.
The San Bernardino County Fire Department reported multiple gunshot victims and a triage area had been set up.
"It's a developing situation," said Eric Sherwin, a Fire Department spokesman.
Students were sent to Cajon High School to be reunited with their parents.
School officials said the shooting was "isolated to the campus"
The shooting comes as San Bernardino has seen a major increase in violence.
There were 62 slayings in San Bernardino in 2016 _ a 41 percent increase from the year before. It was the deadliest year in the city since 1995.
The violence is an open wound on a city trying to recover from a prolonged bankruptcy and the 2015 terror attack.
