TOPEKA, Kan. (AP) The family of a Topeka woman who died after her house exploded plans to sue a utility company and a lawn service.

An attorney for the family of Lucinia " Lucy" Tolliver say the family will sue Kansas Gas Service and N-Line Lawn Service of Wetmore.

The 81-year-old Tolliver, a native of Nemaha County, died after a natural gas explosion at her home on Jan. 30.  Attorney Thomas Ruzicka said Tolliver's family would seek more than $1 million after investigators for the Kansas Corporation Commission finish a report on the blast.

The Topeka Capital-Journal reports Kansas Gas Service said Tuesday it was cooperating with the KCC's investigation.

Investigators have said digging in a yard west of Tolliver's home caused a natural gas service line to separate from the main line underground. The natural gas migrated into Tolliver's home.