Marin County officials will suspend indoor dining for at least three weeks amid an influx in new coronavirus infections, reversing course one week after giving restaurants the green light to serve customers inside.

The decision, effective at midnight Monday, comes days after the state added Marin County to its watch list, which closely tracks counties struggling to clamp down on a surge in cases and hospitalizations.

Restaurants in Marin County may continue outdoor seating and take-out service, officials said.

“Wearing facial coverings in public, washing hands often, adhering to social bubble guidelines, and practicing social distancing are among practices that will help curtail the coronavirus outbreak and lead to more openings in economic sectors,” Marin officials said.