The crane tore through multiple floors of the five-story Elan City Lights residential building near downtown Dallas at around 2 p.m., Dallas Fire and Rescue officials said, as severe weather touched down in the area.
Six people were injured, two of them hovered in mortal danger.
"We're hoping that what now we private at this point is where it ends [in terms of casualties]", said Mr Evans.
Toni Smith told The Associated Press that her sister, Kiersten Symone Smith, lived in the Elan City Lights, which was badly damaged when the crane fell during severe thunderstorms Sunday.
Two victims were listed in critical condition and three others were listed in "serious", condition, rescue officials said.
"Massive crane blew over into my complex". "And then it just got dark very quickly and the wind picked up something fierce".
The tower's parking garage used to be also broken, and search and rescue efforts are serene ongoing. "It went from the fifth floor to, from what I can tell, the third floor", she said.
Shocking images showed the crane had torn through the concrete as it fell into the building. "There were cars that were vertical, there was cars from maybe the eighth floor all the way down into the third floor where we park", she said.
The weather chiefs said that the winds were expected to surpass 70mph at the time. At Dallas Love Field airport, WFAA-TV reported that gusts damaged a hangar door and part of the roof at a Southwest Airlines maintenance facility.
A powerful thunderstorm toppled a crane Sunday afternoon in downtown Dallas, authorities reported.