Eight people died and about 300 people were injured at the outdoor music fest hosted at NRG Park in Houston on Friday.
"Absolutely heartbroken for the lives who were lost and anyone who was hurt at Astroworld," Kardashian West, 41, said in a statement shared on her Instagram Story Monday.
"Just like all of you, our family is in shock by the tragedy," she added. "We are keeping all of the victims, families and loved ones impacted in our prayers for healing – as well as Travis who we know cares so much about his fans and is truly devastated."
Kim Kardashian/instagram Kim Kardashian's Instagram
The tragedy occurred on Friday night during Scott's performance at Astroworld, when fans stormed the stage, causing a deadly crowd surge. John Hilgert, 14; Brianna Rodriguez, 16; Franco Patiño, 21; Axel Acosta, 21; Jacob Jurinek, 21; Rudy Peña, 23; Madison Dubiski; 23, and Danish Baig, 27, have been identified as the eight victims who died in the tragedy.
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"My thoughts and prayers are with all who lost their lives, were injured or affected in anyway by yesterday's events," Kylie, 24, wrote.
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Kylie added that she's thinking about Scott, "who I know cares deeply for his fans and the Houston community."
Kylie, who shares 3-year-old daughter Stormi with Scott and is currently pregnant with their second child, also addressed accusations that the musician ignored fans' cries for help during the show.
"I want to make it clear we weren't aware of any fatalities until the news came out after the show and in no world would have continued filming or performing," she said. "I am sending my deepest condolences to all the families during this difficult time and will be praying for the healing of everyone who has been impacted."
In a statement shared on Saturday, Scott, 30, said he was "absolutely devastated" by the events that took place, and announced on Monday that he will pay for the funeral costs of those who died, Variety reported.
Kendall Jenner/instagram Kendall Jenner's Instagram
Kylie's sister Kendall Jenner also addressed the tragedy with a brief statement shared on Instagram Monday.
"I'm still at a loss for words over the news from Astroworld," she wrote. "I'm truly broken for the families that have lost loved ones and my prayers go out to everyone involved. Sending everyone who has been affected all of my love and wishing them strength during this incredibly devastating and sensitive time."
Houston police are currently investigating the incident.