At least four people were killed when a huge explosion flattened a Scottish plastics factory on Tuesday, trapping workers in the wreckage, rescuers said.
The cause of the blast was not immediately known, though one report spoke of a possible gas leak.
Local fire chief Brian Sweeney said there were three dead and 37 injured in the blast. A police spokesman later said a fourth body had been pulled from the rubble.
Sweeney said rescuers had pulled six people from the rubble and were in voice communication with five others. At the scene, wounded people staggered near the rubble with bandaged, bloodied faces.
There were 120 emergency workers at the scene, but numbers being allowed onto the rubble were being limited as it was unstable.
"We were working away when we heard a massive bang and everything rattled and shook," said eyewitness Suzanne Townsley, who works at a hairdresser opposite. "The glass was blown out of all the cars on the street," she told Reuters. "It was terrifying because we had no idea what was happening."
Thermal imaging equipment and hydraulic supports were taken to the site, where rescuers had pulled out about six injured people during the afternoon. Sky news said the blast may have been caused by a gas leak but police could not confirm that.