British police responded to a “major incident” in Leicester, England, after an explosion caused a building to collapse along a busy thoroughfare. The cause of the explosion was not immediately clear.
Authorities said “all emergency services” responded to the incident, which closed Carlisle Street and part of Hinckley Road.
Four people were taken to a nearby hospital following the incident, the East Midlands Ambulance Service said Sunday.
Officials at the scene said they were conducting a search and rescue operation, BBC News reports. A police spokesperson said six fire engines responded to the incident.
Leicestershire Fire and Rescue Service said a two-floor building suffered a “pancake collapse,” and said it was unknown if anyone was trapped inside. Officials said there is a hazmat team on the scene.
Video footage from the scene showed rubble on the street and smoke and flames still pouring from a building.
A witness at the scene told CBS News she heard a “bang” and thought it was a car accident. She said emergency services arrived within minutes and that she could see the fire about 200 meters away.
This is a developing story and will be updated.
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