A video showing a Baltimore man brutally beating his pregnant girlfriend that streamed on Facebook Live - has now gone viral.

The video starts out showing a man and his pregnant girlfriend arguing on a crowded Baltimore street. No one helped the woman, who was being beaten.

A passerby heard the couple arguing and decided to take some video.

But the argument quickly turned violent - with the Baltimore man knocking over his pregnant girlfriend and then started pummeling her with rights and lefts.

At one point, the pregnant woman attempted to jump into a car and flee - but she was dragged out and beaten.

MTO News contacted the Baltimore police department, and they told us that they are investigating the video - and looking for the man in it.

It's not clear whether the woman - who sustained a barrage of blows - loses her baby.

Warning - the video is VERY graphic

LINK TO VIDEO - WARNING CONTAINS VIOLENCE