OAKLAND — The Oakland A’s on Wednesday said that Major League Baseball is aware of an incident last month in which the wife of reliever Jake Diekman said a neighbor attempted to enter their rental home and threatened to shoot her and their 2-year-old daughter.

Amanda Diekman tweeted about the incident earlier Thursday, providing details about the encounter and the family’s frustration with finding legal recourse against the would-be intruder.

Diekman said a 23-year-old man from the neighborhood attempted to break into their home on Aug. 28 and was arrested later that day. According to the post, the Diekmans filed a restraining order, but law enforcement told the family the order could not be served because of the man’s mental health status.

“We feel helpless and the whole system feels so backward,” Diekman wrote. “I feel for anyone that has gone through something like this, domestic or civil. It is a very violating, scary, upsetting, frustrating and unfair thing to go through. If our system can’t help you and dismisses you when someone comes to kill you at your own home, especially if they are ‘mentally ill,’ I’m sorry, but that is a very messed up system.”

Jake Diekman before the A’s game Wednesday declined to comment. But earlier in the day, he tweeted:

“If someone were to hurt the women in my life and the law didn’t take care of it, what would I do? Pretty awful things.”

Law enforcement agencies reached Wednesday were unable to provide any details on the incident.

The A’s said in a statement that, “We have been treating this situation seriously since we were first made aware of it the morning of the incident. We immediately contacted MLB and our local Resident Security Agent for their assistance. Our RSA continues to work alongside the Diekmans. The safety of our players and employees is our top priority.”