MADISON, Wis. — Four people were injured after an explosion and building collapse on Madison's west side on Tuesday.
The incident happened near Gammon Road and Park Ridge Drive around 6 p.m. One person was taken to the hospital and three others transported themselves to the hospital.
According to an update from the Madison Fire Department, the Madison Fire Department Fire Investigation Team is processing the scene.
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At least 21 people were displaced from both buildings.
Another 8-unit building also suffered damage Tuesday as a result of the explosion.
Firefighters rescued four pets.
Madison's Heavy Urban Rescue Team is on scene so crews can search inside. There is no evidence anyone is trapped inside and there are no reports of missing residents.
Madison Fire Chief Chris Carbon said it is too soon to determine a cause, but one of the units is believed to be the origin.
WISC-TV reports a portion of a multi-story condominium building collapsed. Witnesses in the area also reported hearing an explosion. Another witness told WISC-TV that she saw multiple people with apparent injuries.
Debris from the building is scattered in the area and multiple doors and windows are reportedly blown out.
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