Tenants at a luxury apartment complex in Stamford say they are rattled Wednesday after a portion of a roof deck collapsed into a parking garage.

Officials returned to the Allure apartments in Harbor Point to inspect the structure and others nearby. A photo from a viewer shows a slab that fell onto the parking ramp that sits underneath the pool and roof deck. Another picture captured from an apartment looking down shows the crumbling patio.

Building & Land Technology issued a statement saying, "Yesterday afternoon, a portion of an outdoor patio that was closed for the season partially broke off into the top floor of the garage. No one was injured and no resident property was damaged. Building staff and ownership was immediately aware and quickly notified city officials and residents. BLT, structural engineers, and city building officials are investigating the root cause of this incident and then setting a timetable for remedial work. The safety, health and wellbeing of our residents is always our top priority, we will review all our other properties as well, but we have no reason to think this is anything other than an isolated incident. We are in regular communication with our residents and encourage any of them to contact us with any questions or concerns."

MORE: Roof partially collapses at Allure at Harbor Point in Stamford

Some tenants moved their vehicles to another parking facility across the street. The bottom two levels of the ramp are still in use, but some tenants tell News 12 they think that it's too dangerous.

A spokesperson for the city issued a statement saying, "The City of Stamford Buildings and Engineering Departments are investigating and seeking information about the nature and cause of a collapse at a parking garage at 850 Pacific Street, at a residential building known as the Allure. At this time, the city has no reason to believe that there are any immediate risks to similar buildings in the South End, however, the buildings and fire departments have been ordered to conduct visual inspections of other similar locations, and the engineering department is determining what additional information the city needs from the building owners. The city expects full cooperation with that effort. Garage floors 3 and 4 at 850 Pacific Street will remain closed until further notice. Any resident or visitor who notices an unsafe condition should call 911 immediately."