A 16-year-old boy was stabbed steps from a Bronx high school in a violent clash Wednesday morning – one day after a 17-year-old was busted inside his school with a loaded gun, cops and sources said.

Detective Inspector Mark Newbury, the senior investigating officer, said: “That three boys armed themselves with knives to go to a teenage girl’s 16th birthday party is utterly unconscionable.

A teenager who stabbed another teenager to death with a large hunting-style knife at a 16th birthday party has been ... “The lives of boys who carry knives continue to be taken by those who ...