A 19-year-old man was stabbed in the hip aboard a northbound 6 train early Saturday morning, according to police.

The NYPD says it happened just after 3:30 a.m. as the train approached the St Lawrence Avenue Station.

EMS transported the victim to Jacobi in stable condition.

Police say three people were taken into custody and their charges are pending.

This is the second knife attack aboard a 6 train this week.