EXCLUSIVE: Kim Kardashian 'Absolutely Traumatized' After Paris Robbery, Not 'Fully Able to Comprehend What Hap

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Kim Kardashian is "still in shock" after she was woken up and robbed at gunpoint inside the luxury apartment she was staying at in Paris, France, a source close to the reality star tells ET.

The source says Kim is "absolutely traumatized" by the burglary and hasn't been sleeping since it occurred. "When the incident happened, [Kim] was half asleep and was woken up so abruptly," the source explains. "She was on little sleep to begin with since getting to Paris. She still hasn’t fully been able to comprehend what happened.”

WATCH: Who Is Kim Kardashian's Bodyguard Pascal Duvier and Where Was He at Time of Paris Robbery?

According to the insider, "the concierge brought the men up into Kim's bedroom" while she was in her bed wearing a robe. "She heard really loud footsteps in the apartment coming up to the second floor, where she was sleeping," the source claims. "She picked up her cell but wasn't able to call [bodyguard] Pascal [Duvier] in time before one of the guys grabbed it out of her hand and she realized what was happening. It was absolutely horrific.”

As for identifying the men, the source says Kim "didn’t get a look at any of the guys' faces" because they were wearing black ski masks and gloves."None of them spoke English, so she couldn't communicate with them," the source continues. "All she kept saying over and over is 'I have kids. Take anything you want. Please don't kill me. Please don't kill me.'"

WATCH: Kim Kardashian's Friends La La Anthony and Jonathan Cheban Visit Her After Terrifying Armed Robbery

While Kim was alone in her bedroom at the time of the burglary, she was apparently not alone in the apartment. Celebrity stylist and Kim's longtime friend, Simone [Harouche], was in another bedroom in the suite of the residence.

Kim flew out of Paris on Monday morning, and was reunited with her family in New York City. Kanye West met her at the airport, and the source tells ET that she "spent the entire day" with her 3-year-old daughter, North, and her 9-month-old son, Saint. "She's very emotional. The scariest part for her throughout this experience is the fact that it could have been a lot worse, and she couldn’t imagine what that would have been like for her children," says the source. "The kids have no idea what’s going on, thankfully."

EXCLUSIVE: Kim Kardashian 'Thought She Was Going to Die' During Paris Robbery, Cried and Begged for Her Life, Source Says

CBS Radio News correspondent Elaine Cobbe confirmed on Monday that the burglars stole one ring estimated to be worth $4.5 million and a jewelry box with another $6 million worth of items. The source tells ET that the ring was, in fact, the Lorraine Schwartz diamond accessory that Kanye recently purchased for Kim. In addition, six to eight other pieces were apparently stolen, along with one of her phones.

"She was there for [Paris Fashion Week] appearances, so she had all her expensive jewelry with her," the source says. "The stolen jewelry is the last of her concerns right now.”

Since the incident, many celebrities have spoken out in defense of Kim, while some Twitter users have accused her of exaggerating the incident. "Besides the fact that it would not only be uncharacteristic of Kim to lie about something like this, she'd never put herself in this kind of danger," the source notes. "They wouldn’t do something like this for a reality show. She was scared for her life.”

WATCH: Inside the Paris Apartment Where Kim Kardashian Was Robbed

In a statement on Monday to ET, an E! spokesperson said Keeping Up With the Kardashians was not filming at the time of the theft. "All of us at E! are incredibly thankful that Kim Kardashian West is safe, and we send her and her family our love and support," the statement reads. "Keeping Up With the Kardashians was not filming at the time of the robbery. Our focus right now is entirely on Kim's well-being."

Reporting by Jennifer Peros.