(Reuters) – The mayday call went out near midnight to all members of the Cy-Fair Volunteer Fire Department organizing rescue operations in the outskirts of Houston. There was a new emergency: Four of their own in peril.

On a suburban street transformed into a rushing waterway by Tropical Storm Harvey, a firefighter heading out to save people stranded by the storm fell into floodwaters as he was boarding a boat.

The firefighters turned all their attention to rescuing their fellow.

Matt Perkins, a 21-year veteran of the fire department of Cy-Fair, short for Cypress-Fairbanks, listened intently to the progress from the mini-command post set up in his truck at a gas station.

“Those are my guys out there. I want to make sure they are OK,” he said as he listened to his radio.

“Command Boat 21, do you need a helicopter at your location?” a radio dispatcher said.

A garbled response.

“We can’t understand your response,” the dispatcher responded. “Your mic is wet.”

Hearing no response, the call became more urgent: “Repeat. Do you need a helicopter at your location?”

Finally the radio crackled back to life: “We are extracted. The boat is tied to a tree. We are walking out with the military.”

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