Fire officials say that a home explosion in Jefferson City, Missouri over Thanksgiving weekend left the residence in shambles, with six people inside injured – three critically. Jefferson is the state capital, located about 133 miles west of St. Louis.

According to a press release from Jefferson City Fire, the explosion occurred on St. Louis Road in Jefferson City early Saturday morning at 2:44 a.m. The cause of the explosion is still under investigation. Jefferson City Fire said in the release: “Rescue operations were particularly challenging due to the extensive structural collapse and significant debris. The team had to carefully tunnel through layers of debris to reach the final occupant, who required intensive extrication.” Photos show the explosion left the home almost completely leveled, with responders saying they discovered the six individuals among the debris upon arrival. All six of the individuals were safely removed from the residence by 5:52 a.m.

Emergency responders said of the six individuals injured in the blast, two were transported to Jefferson City Airport and flown to University Hospital in Columbia, Missouri, with the remaining four people transported by ground to University Hospital. Fire officials also said that two pets were rescued from the collapsed home and are now in the care of animal control.

ABC News’ Missouri affiliate KMIZ reports that Cole County EMS Chief Eric Hoy told the outlet that three of the victims are listed in critical condition and received critical life support. The other three have moderate injuries and are in stable condition.

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