A man whose mother is missing in the Florida condo collapse said she heard creaking noises the day before the disaster

• Pablo Rodriguez's mom and grandmother are missing after a condo collapsed in Florida on Thursday.
• He told CNN his mother heard creaking noises in the building the day before the disaster.
• "In hindsight, you always wonder," he said.

The son of a woman who is missing after a Florida apartment building collapsed said she heard creaking noises the day before.

Pablo Rodriguez told CNN that his mom had called him the day before the disaster.

He said: "She just told me she had woken up around 3 [or] 4 in the morning and had heard like some creaking noises. They were loud enough to wake her."

"It was like a comment that she made off-hand, like that's why she woke up and she wasn't able to go back to sleep afterwards."

He added: "Now, in hindsight, you always wonder."

He said his grandmother was also missing.

A large section of Champlain Towers South in Miami collapsed around 1:30 a.m. on Thursday.

One person has been confirmed dead and 99 more people are missing, resulting in fears of a higher death toll.

Rodriguez said he wasn't hopeful his family members would be alive.

"We are not exactly hopeful," he said. "You always hold out hope, until you definitively know but after seeing the video of the collapse, it's increasingly difficult, because they were in that section that was pancaked in."