A 13-year-old girl is recovering from gunshot wounds after the second US school shooting in three days.
The girl, who has not been named, was shot by another female pupil at the cafeteria of her school in Williamsport, Pennsylvania.
Lycoming County Sheriff Charles Brewer says the girl has not suffered life-threatening wounds.
The shooting suspect was quickly taken into custody.
The shooting came after two pupils were killed and 13 people wounded by another pupil at a school in California on Monday and as another apparent bid to launch a school shooting was foiled.
Charles "Andy" Williams is to be charged with murder following California shootings and faces life in prison if found guilty, while his father also faces charges for allowing him access to guns.
Today's shooting happened at 12.30pm local time at the Bishop Neumann school. Neither of the girls involved have been named and one eyewitness said police had been on the spot within minutes of the incident.
In California, police foiled what they believed was a bid by two unnamed pupils to launch an attack on their school in San Bernardino County. They searched the houses of two teenage boys in the county and found a .22 rifle and a list of 16 names of students at a boys' school, which has not been identified.
Meanwhile, pupils at Santana High School in San Diego, California, where Williams launched his attack on Monday have returned to school. Grief counsellors are on hand to help pupils deal with the murder of classmates Randy Gordon, 17, and 14-year-old Bryan Zuckor, and the injuries sustained by a further 13 pupils and staff.
Williams is due to appear in court charged with murder, assault, and illegal possession of a weapon.