Teacher shot outside school

MIAMI – A teacher was shot and critically injured Tuesday outside a high school during an apparent robbery, forcing lockdowns of several schools for more than two hours and leading to the arrest of a 19-year-old man.

The teacher, identified by school officials as Sergio Miranda, was shot in the upper torso and in critical condition.

Miranda was taking a cigarette break across the street from the school during lunch when he was confronted by a man who tried to rob him, said Quintin Taylor, a spokesman for Miami-Dade County Public Schools.