The family drama between Nick and Aaron Carter reached a new level on Tuesday, as the estranged brothers feuded on Twitter after Nick announced that he had taken out a restraining order against Aaron.

"So my brother just got a a restraining order against me. And I was just served lol," Aaron tweeted. According to court documents obtained by ET, Nick was issued a temporary order for protection for himself, his wife, Lauren, his son, Odin, and his mother-in-law and father-in-law on Sept. 17. The temporary order states that Aaron must stay 100 feet away from the protected parties and is prohibited from contacting, intimidating, threatening or otherwise interfering with them. The temporary order expires on Oct. 16, and a court hearing is set for that date in Las Vegas, where it will be decided whether or not to issue an extended order of protection.

"Take care. @nickcarter we’re done for life," Aaron later tweeted on Tuesday. "I haven’t seen him in four years. And I don’t intend."

So my brother just got a a restraining order against me. And I was just served lol

Take care. @nickcarter we’re done for life.

I haven’t seen him in four years. And I don’t intend.

Last week, the singer visited The Doctors, where he shared that he's been diagnosed with multiple personality disorder, schizophrenia, acute anxiety and manic depression. He also shared that he's currently taking a number of prescription medications.

Nick told his side of the story in a longer, disturbing post, which he also shared to social media.

"After careful consideration, my sister Angel and I regret that we were required to seek a restraining order against our brother Aaron today," he wrote. "In light of Aaron's increasingly alarming behavior and his recent confession that he harbors thoughts and intentions of killing my pregnant wife and unborn child, we were left with no choice but to take every measure possible to protect ourselves and our family. We love our brother and truly hope he gets the proper treatment he needs before any harm comes to himself or anyone else."

#mentalhealth#GunControlNow#GunControlpic.twitter.com/q280ClqyjI

Nick attached two documents in his request for protection, according to court docs obtained by ET. The first states his concerns for the lives of his wife, son and unborn child, and the second is an email from Aaron's twin sister, Angel Conrad, who recounts a conversation she had with Aaron in August, during which he told her of his mental health diagnoses and admitted to having thoughts of killing babies and killing Nick's wife Lauren. 

"[Aaron] said,'Angel I want to tell you something that I never told you before- I was diagnosed with schizophrenia and bipolar 2 years ago,'" Angel's email reads, according to the court docs.

"I (Angel) said, 'Okay, do you hear voices? Do you have thoughts?'" she continued. "He said, 'I have thoughts of killing babies. I come up with different scenarios in my head.' I (Angel) said, 'Who else do you think about killing?' Aaron said, 'I think about killing Lauren Kitt.' I (Angel) said, 'Do you think about killing me?' Aaron said, 'No, never.'"

On Friday, ET obtained legal documents filed by Angel, in which she also requested a restraining order against Aaron, citing the same disturbing comments as well as her brother's possession of multiple guns.

Aaron later responded to Nick's post on Twitter, denying his brother's claims. "I am astounded at the accusations being made against me and I do not wish harm to anyone, especially my family," he tweeted. "This is obviously a chess game of some sort."

I am astounded at the accusations being made against me and I do not wish harm to anyone, especially my family.

This is obviously a chess game of some sort.

"All I ask is for my family to leave me alone," he continued, also posting a clip of the brothers' infamous physical confrontation on their reality series House of Carters. "This is blood. Not love. I will never be around you and I don’t want to be around you. I am the one who said I’m done then you send me this!? Ok. Stop trying to get me 5150’d before I file a harassment suit myself nick I have the $." 

All I ask is for my family to leave me alone. This is blood. Not love. I will never be around you and I don’t want to be around you. I am the one who said I’m done then you send me this!? Ok. Stop trying to get me 5150’d before I file a harassment suit myself nick I have the $

LEAVE ME ALONE. FOR THE REST OF MY LIFE. IM BEGGING YOU. PLEASE. 🤝 I haven’t even seen you guys and nick you bullied me my whole life. And tortured me as a child. And everyone knows it. ITS BEEN PUBLIC. and now you’re scared of the truth. pic.twitter.com/kd7nIF49PI

ET has reached out to reps for both Nick and Aaron for comment.

This latest family drama comes after Aaron cancelled a number of upcoming tour dates this year in order to focus on "taking sobriety one day at a time" as well as "a family issue."

The 31-year-old singer broke the news on Twitter at 4:00 a.m. on Monday, writing, "I appreciate the love and efforts from my supporters but after my next two shows coming up in Kentucky & Missouri & after I fly to Vancouver to do the toy drive which I'm donating 400 toys and over 1k of fan donations I'm canceling the rest of my shows for the remaining year."

"I have to put my health first and I hope you can all understand how much I need this time to heal and recharge my batteries," Carter continued. "I love you. Stay strong. Stay healthy, and just know I'll be back next year ready to go. But as a man, this is what I need to do to have some peace. Xo."

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