A blimp made an emergency landing and deflated at a construction site next to a Philadelphia highway.

No injuries were reported on the two-passenger blimp or on the ground where it landed, near the SugarHouse Casino.

The blimp floated over the Delaware River one Friday night before going down in the Fishtown neighborhood along Interstate 95. A section of the highway was closed briefly while crews secured the area and inspected the blimp.

It’s unclear what caused the blimp to go down. Police say the Federal Aviation Administration and the National Transportation Safety Board were notified.

The blimp displayed advertising for adhesives company Bostik Inc., based in Wauwatosa, Wisconsin.