NUECES COUNTY, Texas (KTRK) -- The brother of the late singer Selena Quintanilla has filed a lawsuit against his sister and the production companies she manages for more than $1 million over the Tejano star's estate, according to court documents obtained by ABC13.

The civil lawsuit was filed last week in Nueces County, where, according to the lawsuit, both Abraham "A.B." Quintanilla III and Suzette Quintanilla Arriaga reside.

A.B. is suing Suzette along with Q Production, Inc. and Q Productions, Inc., two companies created to manage Selena's entertainment affairs after her death, the lawsuit states.