Four men wearing disguises tried to break into a senior Crown attorney's Winnipeg home on the weekend, say police who have arrested three men and are seeking a fourth.

The attempt to enter the woman's home took place early Saturday morning, but a resident was able to prevent them from getting inside, Winnipeg Police Const. Jacqueline Chaput said Monday morning at a news conference.

The Manitoba Association of Crown Attorneys confirmed that the lawyer was targeted because of her work on a recent case, but wouldn't give her name or identify the case.

"Crown attorneys put themselves in harm's way on a daily basis dealing with, effectively, the worst of the worst in the jobs that they perform," said Lisa Carson, a spokeswoman for the association.

Three men have been charged with assault, break and enter and uttering threats to cause death or bodily harm, Chaput said.

Police allege the same lawyer also received a threatening phone call on Friday.

They are treating the two incidents as separate investigations.

Crown attorneys are being advised to take personal security precautions.