(Bloomberg) -- A conservative Texas lawmaker warned Citigroup Inc. that it could be barred from underwriting municipal bonds and that employees could face criminal prosecution unless the bank backs off a policy to pay for workers to travel outside Texas for an abortion.

Texas state representative Briscoe Cain, a Republican, said Friday he sent a cease-and-desist letter to Citigroup Chief Executive Officer Jane Fraser. He also sent letters to leaders of some major non-profit organizations that have raised millions to pay travel costs for women seeking abortions outside Texas.

A spokeswoman for Citigroup did not immediately respond to request for comment.

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