Two people were killed and several homes were leveled in Indianapolis when a blast rocked the neighborhood.
It is not quite clear what caused the explosion.
"Deputy Fire Chief Kenny Bacon told reporters Sunday investigators haven't eliminated any possible causes for the blast," said the Washington Post. "But U.S. Rep. Andre Carson, who represents the area, said he had been told a bomb or meth lab explosion had been ruled out."
"Deputy Code Enforcement Director Adam Collins said as many as 31 homes were damaged so badly that they may have to be demolished," the New York Times said. "The explosion damaged a total of 80 homes, he said. He estimated the damage at $3.6 million."
Most evacuees are staying with family and a relief operation was set up in a nearby church.