(CNN) -- Severe weather's assault on middle America continued Tuesday, as tornadoes and thunderstorms pulverized communities and claimed at least six lives in Oklahoma and Kansas.
Twisters also brewed in Dallas and several northern Texas counties, according to the National Weather Service, with at least one tornado reported on the ground.
There was no rest for the weary and grieving.
Joplin, Missouri, where 124 died in a tornado Sunday, was briefly under a tornado warning late Tuesday, but it was later lifted. Still, the city braced for high winds.
Two motorists died when an uprooted tree slammed into their van in Stafford County, Kansas, according to the state adjutant general's office.
The deadly string of tornadoes that rampaged through central Oklahoma killed at least four people, injured dozens and destroyed homes and vehicles, officials said.
Canadian County, Oklahoma, Sheriff Randall Edwards told CNN a large tornado that crossed I-40 near El Reno destroyed residences and caused a gas leak at an energy plant west of the state capital.
Four people died in the county, said Cherokee Ballard, spokesperson for the state medical examiner.
The twister injured motorists on I-40 and U.S. 81, Canadian County Emergency Management Director Jerry Smith said. There were reports of property damage in the area.
El Reno city spokesman Terry Floyd said 20 workers were injured at a drilling rig.
Police and fire crews are searching for a missing 3-year-old old child in Piedmont, northwest of Oklahoma City, according to an emergency services worker who asked not to be named because she was not authorized to speak to the media.
"Our town is totally leveled," she said.
"All you can find now is debris and foundations," said the emergency services worker, her voice cracking with emotion. "We're still searching for survivors. We'll be here all night."
Another tornado was seen at Chickasha, about 40 miles southwest of Oklahoma City. It later reached Newcastle, before pushing through Moore and Norman, suburbs of Oklahoma City. The National Weather Service warned residents and I-44 drivers to take precautionary action.
About 1,200 people packed a shelter in Newcastle, a bedroom community near Oklahoma City, during the storm, said City Manager Nick Nazar. "That saved lives."
"We have been extremely lucky," he said. "Minor injuries so far."
About 100 people were displaced, and 50 homes were rendered uninhabitable, Nazar told CNN. Two or three businesses were damaged, as was an elementary school.
Statewide, at least 60 people were hurt and nearly 58,000 homes lost power, according to the Oklahoma Department of Emergency Management.
The tornado that passed through Chickasha also damaged several other communities, including Newcastle.
"It came right past the store," said Chickasha AutoZone employee Nathaniel Charlton. "They had a little debris thrown across the parking lot. It was on the ground, but it wasn't bad."
Sirens went off about 20 minutes before the storm pushed through, Charlton told CNN.
State officials received reports of damaged businesses in Chickasha.<