Police are investigating after a teen was shot and critically injured in Brooklyn on Monday afternoon.

The 15-year-old boy was shot in the back near 2007 62nd St. just after 1 p.m.

He was taken to Maimonides Medical Center where his condition is said to be very grave.

The suspect is described as a male wearing a gray sweater, black or red sweatpants and gray sneakers.

Witnesses described seeing a group of teenagers gathered before hearing as many as five shots.

They say kids scattered in all directions, including the 15-year-old victim, who fell in the street about half a block from where he was shot.

Residents in the neighborhood said they were stunned and fearful as it is a neighborhood filled with young families and small businesses.

No arrests have been made and the investigation is ongoing.