The all clear has been given after an industrial chemical leak prompted a shelter-in-place for people in the Berry Hill area of Nashville.

The incident was reported around 3:30 a.m. Tuesday at the Mrs. Grissom’s Salads plant on Bransford Avenue and Craighead Street.

Hazmat crews were called to the scene after an ammonia leak, but the leak has now been capped.

According to firefighters, ammonia seeks out moisture so they were concerned as to where the gas was moving.

A Metro Nashville school bus was sent over to transport 25 people from the area. At least 31 were checked out at a triage unit that was set up in a parking lot at 100 Oaks.

Nashville Fire Department officials said everyone is now safe. However, one person at the Coca Cola plant was transported to an area hospital after suffering from nausea and throat pain.

Residents who live within a mile of the area were asked to shelter-in-place and turn off their HVAC units.

It’s unclear at this time what caused the leak.