
 
 A file photos shows a view of the Kumbhu icefall. (Gurinder Osan/AP) 
 
 At least one American climber is among the 10 or more dead after an avalanche caused by an earthquake on Mount Everest. Google engineer Dan Fredinburg, who was on Everest as part of the Jagged Globe team, died as a result of head injuries sustained in the avalanche, according to Fredinburg’s sister. She posted the news on Instagram on Saturday afternoon along with a picture of her brother on his account. 
 
 The caption reads: 
 
 “This is Dan’s little sister Megan. I regret to inform all who loved him that during the avalanche on Everest early this morning our Dan suffered from a major head injury and didn’t make it. We appreciate all of the love that has been sent our way thus far and know his soul and his spirit will live on in so many of us. All our love and thanks to those who shared this life with our favorite hilarious strong willed man. He was and is everything to us. Thank you.” 
 
 The news comes one day after Fredinburg, who once dated actress Sophia Bush, posted a picture of himself ice training on the mountain. 
 
 “Day 22: Ice training with (climber Michele Battelli) means frequent stops for morning cappuccino, regardless of danger. #Everest2015,” the caption reads. 
 
 Fredinburg was an experienced climber, who was on Everest last year when an avalanche struck in April. Bush reportedly tweeted that he and his team emerged from that tragedy okay, according to US Weekly. 
 
 On Saturday, rescue missions continued on Everest after the avalanche that struck between the Khumbu Icefall left much of the camps buried in feet of ice and snow. Conditions, however, have reportedly made their efforts difficult and other climbers who sustained injuries could be in danger. 
 
 #Everest rescue operation is on hold, as per reports 6 helicopters are holding in Lukla to launch rescue mission. #NepalQuake — Northmen PK (@NorthmenPK) April 25, 2015 
 
 #Everest death toll will rise quickly in base camp if injured are not rescued. Many injured in critical situation. #NepalQuake — Northmen PK (@NorthmenPK) April 25, 2015 
 
 Climbers and their teams have been using social media to communicate with their loved ones and update the world on their status on the mountain. One climber described the scene as “horrible,” in a set of two blog posts, but amid the bad news there have been many tweets indicating that the majority on the mountain survived, including American climber Melissa Arnot and her team. 
 
 Melissa and team have checked in via Sat phone – all are safe and OK — Melissa Arnot (@MelissaArnot) April 25, 2015 
 
 A mountain climber at a base camp along the border of Nepal and China, 12 miles southeast of Mount Everest, made a cell phone video saying he was worried about his team members after an earthquake triggered avalanches in the area. (Reuters) 
 
 This post will be updated. 

 Sophia Bush and her Google program manager boyfriend Dan Fredinburg have split, a source confirms exclusively to Us Weekly Credit: Jeffrey Mayer/WireImage 
 
 Sophia Bush is flying solo. The Chicago P.D. actress and her boyfriend Dan Fredinburg have split, a source confirms exclusively to Us Weekly. 
 
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 "They broke up in February," the insider tells Us, adding, "they still really care a lot about each other but it was impossible to remain a romantic relationship with the careers they have." 
 
 The two have remained amicable since the breakup. In April, Bush confirmed that her ex was okay following a scary Mt. Everest avalanche. "For all concerned, @danfredinburg & team are safe at Camp 1 on #Everest after the avalanche," she tweeted at the time. "Please keep the Sherpas in your prayers." 
 
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 Us broke news back in April 2013 that Bush and the Google program manager, both 32, began dating. He's "super intelligent—and she really likes him," an insider told Us at the time. "She's mentioned wanting to marry him and I won't be surprised if she gets engaged!" 
 
 Bush kept the couple's romance quiet for the majority of their relationship, only stepping out as a couple publicly a few times. Last year, however, she gushed about Fredinburg after he came out to support her at the Do Something Awards in Hollywood. 
 
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 "I usually shy away from personal stuff, but I'm feeling real emotional tonight...Hosting the @DoSomething Awards was a milestone for me," she wrote via Instagram on July 31, 2013. "And I wouldn't have been the same without this man by my side. Thank you, Dan, for loving my passion and my fight. Thank you for being the spark to my match." 
 
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 Bush previously dated her One Tree Hill costar Austin Nichols on-and-off for six years until their split in February 2012. She's currently on location in Chicago filming the second season of the NBC drama Chicago P.D.
– One of the Everest victims has been revealed as Google exec Dan Fredinburg. His sister today confirmed in posts to his Twitter and Instagram accounts that he died after suffering a head injury in the avalanche triggered by the Nepal quake. Fredinburg's LinkedIn profile lists three roles held at Google: "Head of Privacy for Google[x], Manage Product Management team for Google's Privacy team, Lead Google Adventure Team." The Washington Post reports he was on Everest during the mountain's deadliest day ever last year; it picks that detail up from Us Weekly, which included it in a report on Fredinburg's 2014 split from girlfriend Sophia Bush. Fredinburg was on the mountain as part of a Jagged Globe expedition, and the company confirms his death and reports two other team members suffered non-life threatening injuries. Here's what his sister wrote on Instagram: "This is Dans little sister Megan. I regret to inform all who loved him that during the avalanche on Everest early this morning our Dan suffered from a major head injury and didn't make it. We appreciate all of the love that has been sent our way thus far and know his soul and his spirit will live on in so many of us. All our love and thanks to those who shared this life with our favorite hilarious strong willed man. He was and is everything to us. Thank you." See his Instagram account for many more photos of Fredinburg on Everest.