A Facebook video allegedly showing two boys sexually assaulting an unconscious underage girl has sparked a major police investigation in Kansas City, Missouri.

Footage posted online on Sunday shows a female lying in nothing but a bra as a male molests her, according to KCTV5.

It was removed from Facebook minutes after police were alerted.

The suspects are both students in the Raytown School District, police told KCTV5.

SCROLL DOWN FOR VIDEO

Footage posted online on Sunday shows a female lying in nothing but a bra as a male (pictured) molests her, police said

According to residents who spoke to KCTV5, the girl and two boys are believed to have met at a pool hall on December 19 before relocating to a hotel.

They stayed at the hotel into the early hours of December 20.

The alleged assault was reported later that afternoon.

No arrests have been made and police have yet to see the entire video.

Video courtesy of KCTV5

However, the high schooler who reported the video took some screengrabs, which were sent to the police department and KCTV5.

A spokesman for the school district said in a statement: 'The Raytown School District has been made aware of accusations against two students in an off-campus incident.

'While we cannot control choices made by students outside school hours, we will cooperate to assist police in any way we can.'