Staff at a Houston television station broadcasting live coverage of Tropical Storm Harvey had to evacuate after water from nearby flood-prone Buffalo Bayou started to gush into the building.

KHOU-TV tweeted images Sunday of water pushing through a front door and flooding the lobby. Other images showed sand bags placed against another door had failed to stop the water that was already ankle deep. KHOU is the CBS affiliate in the nation’s fourth largest city.

This is the scene in Buffalo Bayou, the station’s neighborhood:

Buffalo Bayou in Houston. Unbelievable. #houwx #houstonflood #txwx #Harvey pic.twitter.com/grCKUmZYmr

— Mike Prendergast (@MPrendergastTX) August 27, 2017