Follow CBSDFW.COM: Facebook | Twitter

AUSTIN (AP) – The Texas attorney general is suing the federal labor department over a plan that would extend family and medical leave benefits to married same-sex couples.

READ MORE: Dozens Of Homes Were Evacuated Due To Wildfire In Central Texas

Attorney General Ken Paxton filed the lawsuit Wednesday. He argues that a proposed federal rule changes the definition of a spouse, requiring Texas agencies to violate state law by granting those benefits to gay couples legally married in other states. The rule is set to take effect March 27.

READ MORE: Greenhill Seniors Lee Dort And Noah Shelby To Continue Unique Bond At Vanderbilt University

Paxton also advised state agencies to ignore the rule and instead follow a state law that bans gay marriages. A federal judge has ruled the law unconstitutional, but Texas has been allowed to enforce the ban while it appeals the ruling.

A message seeking comment was left with a Labor Department representative Thursday.

MORE NEWS: 3 Teens Killed In Double Murder-Suicide Near Houston, Sheriff Says

(© Copyright 2015 The Associated Press. All Rights Reserved. This material may not be published, broadcast, rewritten or redistributed.)