A 13-year-old girl is recovering from gunshot wounds after the second US school shooting in the past three days.

The 15-year-old accused of killing two fellow students at a California high school was an 'angry young man' but apparently lashed out at no particular target, investigators said.

The boy accused of shooting dead two classmates in the US talked of going on a shooting spree, it is claimed.

A website set up in memory of the victims of the Santana High shooting pleads with users to report any suspicion that a shooting may be about to take place.

Two teenagers died and 13 were wounded when a 15-year-old boy who was picked on and had talked about shooting classmates opened fire in a high school toilet, officials said.