(CNN) Authorities went door to door in parts of northern Dallas Monday after a powerful weekend tornado knocked out power and caused severe damage. A line of storms continued on to lash parts of the Great Plains, killing two people.

As the storm passed through northwestern Arkansas, one man was killed after a tree fell on his home, said Robert McGowen, a spokesman for Benton County Emergency Management.

Another person was killed in Valliant, Oklahoma after a tree fell on their home during the storms Sunday night, Oklahoma Emergency Management spokeswoman Keli Cain said.

The fallen trees trapped three people inside of a mobile home, the Valliant Emergency Management said in a social media post, but rescue operations were able to locate two of them and take them out. The third person did not survive.

That line of storms was also responsible for a powerful tornado in Texas.

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