Firefighters Sunday knocked down a dumpster fire in the basement of a 38-story high-rise in Westlake, which triggered alarm and fire sprinkler activations on multiple floors, authorities said.

Firefighters dispatched at 5:39 a.m. to 1100 W. Wilshire Blvd. had the fire out at 6:18 a.m., the Los Angeles Fire Department reported.

“Firefighters located a dumpster fire in the basement, which triggered fire sprinklers in a trash (chute) room on the 17th floor and is the source of the smoke,” said Margaret Stewart of the Los Angeles Fire Department.

“Firefighters will work with the building engineer to manipulate the HVAC system to fully ventilate the building and remove the smoke,” Stewart said. “Any occupants not already evacuated are being advised to shelter in place.”

Firefighters will continue to ascend the structure’s stairwell and check every floor to the top, to evaluate smoke conditions, Stewart said.

No injuries were reported.