Five people were injured just before 7 p.m., Wednesday, when a house exploded on the city's southeast side.
A home on the 9100 block of Tennessee Avenue had an initial explosion followed by several subsequent explosions, said Kansas City Fire Department public information officer James Garrett.
Two children injured in the explosions were taken to Children's Mercy Hospital, two adults were taken to other hospitals and one person refused to be taken to a medical facility, Garrett said. The two children are listed in good condition. The two adults are in critical condition.
"I just thought, 'Hey, he needs some help," said neighbor Bryan Lott. "I didn't know how bad he needed help until I actually got in and saw the extent."
Bomb and arson investigators are at the scene, but an exact cause has yet to be determined.
"It's very critical in any case to get here as fast as we can," said Garrett. "In this particular case, it hopefully made a great difference in that we are able to save a few lives."
Garrett said the department responded within five minutes of receiving the call.