US: Three dead, two injured in San Bernardino school shooting

California : A gunman open fired with a pistol in a California special-needs classroom, killing his teacher wife, a student and himself.

San Bernardino Police Chief Jarrod Burguan said that four people were shot and the victims included a teacher and two students.

At least two students were among the wounded, the chief added.

Two youngsters wounded in the shooting were not thought to have been deliberately targeted by the attacker but were hit because they were behind the woman.

Monica Garcia of the San Bernardino Unified School District said the shooting appeared to stem from a domestic violence dispute involving the injured teacher.

The school, North Park Elementary, remained under lockdown till late Monday morning. Details about the shooter were not immediately available.

In December 2015, San Bernardino was hit by a mass shooting at a meeting which left 14 people killed and 22 others injured.