HOUSTON—Police continued searching the rubble of a demolished hotel Friday for any sign that someone may have been in the building when it was imploded.

An amateur video appeared to show a figure inside the 13-story Crowne Plaza Hotel seconds before the implosion southwest of downtown Houston, police said. However, officials have been unable to confirm that the movement was human.

“It seems to show movement just prior to the implosion,” spokesman Sgt. Nate McDuell said Thursday. “But that hasn’t been confirmed to be human.”

11 News anchor/reporter Vicente Arenas watched the video late Friday.

Workers in the adjacent Texas Medical Center also reported seeing someone enter the building just before the explosions began.

11 News

Crews search the site of the Crowne Plaza implosion.

Investigators asked the demolition company to stop work and began a search of the site Tuesday after receiving the video. 

Officials with Cherry Demolition, who said all their workers were accounted for, told police they searched the building twice before the implosion.

The Harris County medical examiner, homicide detectives, crime scene investigators and crews with cadaver dogs searched the wreckage Wednesday and Thursday.

Houston police spokesman Victor Senties said the search resumed Friday morning.

The hotel was imploded Sunday as part of a planned demolition project.