Dog attacks Melbourne students and teacher

Three students and a teacher have been attacked by a dog at a Melbourne school.

The teacher stepped in when he saw the three children being set upon by a dog at a Ferny Creek school at lunchtime on Monday, an Ambulance Victoria spokesman said

"He's done a great job in stepping in to protect the kids," the spokesman said.

Two boys and a girl suffered bite wounds to the leg, he said.

The boys were taken by ambulance to the Monash Medical Centre in a stable condition.

The girl was treated by paramedics at the scene.

The teacher suffered an injury to his hand.