Latest: Florida pupils walk out in support of massacre school students

Latest:: Pupils from several Florida high schools have taken to the streets in a show of solidarity with students from a nearby school where 17 people were gunned down in their classrooms on Valentine's Day.

Update 6pm:: Pupils from several Florida high schools have taken to the streets in a show of solidarity with students from a nearby school where 17 people were gunned down in their classrooms on Valentine's Day.

Video footage taken from television news helicopter crews showed several dozen students walking out of West Boca Raton High School on Tuesday morning, apparently bound for Marjory Stoneman Douglas High School in nearby Parkland, where the shootings took place.