The pilot of a Scottish police helicopter did not put out any emergency calls before crashing through the roof of a crowded Glasgow pub, killing nine people, investigators said Monday.

Authorities used a crane to remove the wreckage of the helicopter from the roof of the Clutha pub where it crashed on Friday night.

The crew - a civilian pilot and two police officers - died in the crash. Six other people died.

Officials said late Monday they had finished a search and rescue operation at the scene and there are no further fatalities in the rubble.

David Miller, deputy chief inspector of Air Accident Investigations, did not offer a cause for the crash. "We just haven't had a chance yet to have a detailed look at the systems," he said.

Miller said there was no data recorder on board and that the pilot did not make emergency transmissions. - AP