The Bachelor star Gia Allemand has been declared brain dead, E! News announced on Wednesday afternoon.

The 29-year-old model, who appeared on season 14 of the hit reality series, attempted to take her own life, leading to critical loss of brain and organ function, Radar Online reported following her death.

According to TMZ, she was extremely upset about her rocky relationship with longtime boyfriend, NBA basketball player Ryan Anderson of the New Orleans Pelicans. The reality star was taken to University Hospital in New Orleans on Monday night. It was later revealed that the brunette was placed on life support and had her mother and boyfriend by her side. She was taken off life support on Wednesday.

Gia Allemand PHOTOS & VIDEO with Boyfriend Ryan Anderson

On Tuesday, Aug. 13, the 28-year-old model's publicist released the following statement: "Gia Allemand was taken to University Hospital, New Orleans last night following a serious emergency medical event, the details of which are currently not known. She is listed in critical condition."

"Ms. Allemand's mother is with her, along with her long-term boyfriend, NBA basketball player Ryan Anderson of the New Orleans Pelicans," the statement continued. "On behalf of the family, we kindly ask for privacy at this time."

Gia Allemand Dead of Apparent Suicide: 'Bachelor' Alum Hanged Herself

No further information on Allemand's condition has been released.

The reality star appeared on 2010's season 14 of The Bachelor with Jake Pavelka. After being elimination from the final three, she joined the season one cast of Bachelor Pad.

Several of The Bachelor and The Bachelorette stars tweeted their condolences after news of Allemand's death initially hit the Web.

Jake Pavelka: "Please pray for @GiaAllemand . . . A dear friend and one of the sweetest women I know . . . #powerofprayer."

Michael Stagliano: "Hey #BachelorNation send out a prayer for our girl @GiaAllemand."

Juan Pablo: "Sending out my PRAYERS to @GiaAllemand, hope for a quick RECOVERY and STRENGTH to the family in this HARD situation . . ."

Trista Sutter: "Been disconnected from the world for a couple hours & just hearing the news about @GiaAllemand. My heart is heavy. #prayforGia."

Molly Mesnick: "My heart is heavy . . . thoughts and prayers with @GiaAllemand and her family."

Tenley Molzahn: "Fresh air & prayer time. Keep it up #BachelorNation #PrayForGia giaallemand."

Michelle Money: "Please pray for my beautiful friend @giaallemand she is in critical condition and I don't know why or what happened. All I know is she needs a miracle. I believe in the power of prayer. And there is power in numbers. You may not know her personally but I am begging you to pray for her to recover from whatever she is battling. Thank you so much."

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The Bachelor