PROVIDENCE, R.I. — Seven of the eight hair-hanging circus acrobats who fell to the ground during a “human chandelier” stunt in Providence last month have hired a Chicago-based law firm to represent them, the firm announced Monday.

The women were injured during a May 4 performance of the Ringling Bros. and Barnum & Bailey Circus when the apparatus from which they were suspended fell, sending them plummeting to the ground.

Clifford Law Offices has not yet filed a lawsuit, but it said in a news release it plans to conduct an in-depth investigation into all the possible entities that may be responsible for what happened.

While one of the acrobats, Samantha Pitard, was released from the hospital within days, some have severe injuries, and doctors have said it’s not clear whether two with spinal cord injuries will walk again.