Lamar Odom was rushed to the hospital after being found unconscious Tuesday
Credit: Valerie Macon/Getty; Dmac/Fameflynet

When Khloé Kardashianrushed toLamar Odom‘s side after he was found unresponsive at a Nevada brothel, it was not filmed for Keeping Up with the Kardashians.

Despite a source telling PEOPLE the KUWTK crew filmed on Tuesday night as Kardashian left for Las Vegas on a private jet with mom Kris Jenner and sister Kim Kardashian West, sources now confirm that there were no cameras rolling for the show and that it is on hiatus.

“Lamar Odom appeared on several seasons of Keeping Up with the Kardashians, as well as two seasons of his own series Khloé & Lamar,” the network tells PEOPLE in a statement. “We are saddened to hear of his condition, and are sending out thoughts and prayers for his recovery. Keeping Up with the Kardashians is not currently shooting in Las Vegas.”

Still, a source says Kardashian “is very, very upset. She could barely keep it together as she headed to Las Vegas last night.”

The source adds that Kardashian, 31, was crying and “very worried about Lamar.”

Kardashian and Odom signed divorce papers in July, but the reality star has spoken on the show about how much she still cares for him.

“You can tell that Lamar is still so special to her,” the source adds.

The former basketball player, 35, was found unconscious at the Love Ranch South in Pahrump, Nevada, about 3:30 p.m. on Tuesday. He was taken to a local hospital, where he was reportedly intubated, and then brought to Sunrise Hospital in Las Vegas for further treatment.

Dennis Hof, who owns the brothel, told PEOPLE the former NBA star arrived at the establishment Saturday and took herbal Viagra during his stay.

Two women who work at the brothel saw Odom go to sleep around 6 a.m. Tuesday and found him unconscious when they returned at around 3 p.m., Hof said.

A source close to the family tells PEOPLE that while there is confusion about Odom’s condition, “it isn’t just a minor thing” and is “extremely serious.”