yea. if it's really like that i'd call the police. but just make sure that it definitely is really some sort of violence going on.

a year back my sister and i got in a huge fight while my parents were gone and my neighbors thought there was some abuse going on, they called the cops and i had police in front of my house. they came in and asked a bunch of questions and said how worried they get over domestic abuse calls, because how scary and dangerous they can be. then i got fucking charged with vandalism for punching a hole in the wall...

but yea, if it's happening that often and really does sound like it's dangerous, then call the police. best you could do.