Authorities are trying to determine if severe weather was the cause of a construction crane collapse yesterday in Dallas that killed one person and injured six. Severe storms with strong winds were moving through the area at the time of the incident in the city’s downtown. The crane plunged through four floors of an apartment building and onto a parking garage, causing some of the garage’s floors to collapse and burying vehicles in the rubble.

News reports said five of the wounded are in serious and critical condition. A sixth person was treated and released.

It is unclear whether the crane was in use at the time of the incident. The storms, with winds estimated at up to 70 miles per hour, caused power outages throughout the area.