Power in the North and Central halls of the Las Vegas Convention Center, which hosts CES annually, was out for nearly two hours on Wednesday. First reports of the power outage began hitting Twitter from convention goers starting around 11:14AM PT, and was slowly restored shortly after 1:00PM PT. Security evacuated most visitors from the affected halls during that time.

“A preliminary assessment indicates that condensation from heavy rainfall caused a flashover on one of the facility’s transformers,” reads a statement from the CTA, the organization that puts on CES. “We are grateful to NV Energy for their swift assistance, to our customers and their clients for their patience and to the staff for ensuring the safety and security of all attendees and exhibitors.”

The outage impacted hundreds of companies, including giants like LG, Samsung, and Sony, as well as many small startups that paid thousands of dollars to have a presence on the massive show floor. This year’s CES seems to be marked by more chaos than usual, including unprecedented rain that flooded streets and shut down Google’s giant funhouse booth for a day.

The lights just went out at #CES2018 pic.twitter.com/cljfwEsHHh — Nat Levy (@NatJLevy) January 10, 2018

CES North Hall currently without power. — ‍♂️Steven Sinofsky ॐ (@stevesi) January 10, 2018

Using light from the windows during power outage at #CES2018. @CNET pic.twitter.com/HOHtEyRlSB — Mariel Myers (@producermariel) January 10, 2018

Right now all the flashlight vendors at CES are like, “Now it’s our time to shine!” — not that Michael Moore (@Kiey) January 10, 2018

this is some titanic level shit https://t.co/1vKF4VGiQU — Natt การุณรังษีวงศ์ (@nattgarun) January 10, 2018

LG’s massive OLED tunnel slowly flickers back to life after #CESBlackout pic.twitter.com/jwzhJHaMme — Chaim Gartenberg (@cgartenberg) January 10, 2018

Update Jan 10th, 4:17 PM: Article regularly updated with developing information.