Police flooded the streets around several Manhattan schools Wednesday morning after an eruption of gang-related violence left three people — including two teen students — with gunshot wounds the day before.

Eight NYPD vehicles and more than a dozen officers clustered in front of the Harlem Renaissance High School in East Harlem, about a block away from where a 16-year-old student and a 27-year-old bystander were shot Tuesday around 1 p.m.

A few miles to the southwest, six cop cars sat on the Upper West Side roads surrounding the Martin Luther King Jr. Educational Campus on Amsterdam Avenue, near the intersection where a 17-year-old high schooler was shot at least three times Tuesday morning, prompting the schools to go on lockdown.