Insurance broker Lockton, which has worked with the National Rifle Association on gun show and gun carrying policies, said it would no longer sell NRA-endorsed products.

Privately held Lockton joins several other financial industry companies ending deals with the NRA in the wake of the shooting that killed 17 people at a Florida high school.

Insurer Chubb Ltd on Friday said it would stop underwriting the "NRA Carry Guard" program that offers protection for gun owners who shoot in self-defense. The New York Department of Financial Services, which regulates insurance in the state, launched an investigation into Carry Guard last year.

Kansas City, Missouri-based Lockton is the administrator of the Carry Guard insurance and NRA-branded insurance for gun show operators.

"Lockton Affinity has notified the NRA that it will discontinue providing brokerage services for NRA-endorsed insurance programs under the terms of its contract," Lockton said in a tweet.

An NRA spokesman could not be reached immediately for comment.