A critically injured worker was transported Friday afternoon from a barge in San Francisco Bay to a hospital, San Francisco fire officials said on Twitter.

As of 2:56 p.m., a rescue boat from San Francisco International Airport was taking the worker from the barge about a mile from Yerba Buena Island to San Francisco so the worker could be taken to a hospital.

The rescuers were training in the Bay when a distress call from the barge came in.