Over 150 people are still missing following a Thursday (June 24) building collapse in Miami, Florida — and a Colorado woman is one of them.

According to FOX31, Colorado resident Michael Stratton was on the phone with his wife, Cassondra Stratton, when the building collapsed. The phone line went dead, and he hasn't heard from her since.

Stratton is a political consultant, and he and Cassondra split their time between Denver and Florida, where she was living at the time of the incident.

Stratton is now in Miami, where thousands of personnel and dogs are working to rescue the victims. In a press conference, Miami-Dade Fire Rescue Chief Andy Alvarez told CNN that family members of the missing should still "have hope."

"Thank you to everyone who has reached out and is keeping Cassie in their thoughts and prayers, but most of all to the brave men and women working around the clock in unimaginable conditions to bring her and others home," Stratton said in a statement published by Denver7. "Our family is forever grateful. Cassie is a wife, mother and true friend to so many."

According to ABC News, at least four people have died in the incident, while at least 11 others have been injured.

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