Reality star Taylor Armstrong accused fellow Real Housewives of Beverly Hills costar Brandi Glanville of pulling a "publicity stunt," saying the latter's efforts to find her missing dog are not genuine.

Glanville is offering a $10,000 reward to anyone who is able to find her beloved Chica, who she claimed was stolen from her Encino home while she was elsewhere filming with some of the other ladies from the Bravo show. She tweeted on June 6 and 7 all about her missing dog.

''My dog Chica is lost please help! Call me...'I will give anyone who finds my dog chica in Bel air, La, Encino area 10 thousand dollars. Please please. She has a collar call me!

''A little brown chihuawa mix, i cant spell. My boys will be devistated."

Speaking to TMZ, Armstrong had no sympathy for her costar. While on her way to dinner in celebration of her birthday, she said about Glanville's missing dog: "Oh, my god - I don't know what to think about it ... It's probably another publicity stunt by Brandi Glanville, frankly."

The two women have not gotten along and their disputes have played out on the Bravo reality series. Glanville also slammed Armstrong at one point for releasing a book not long after her husband Russell's suicide.

Glanville bought a new dog to fill the void until she finds her log Chica, Radar Online reported Monday. She shared photos of the new dog and tweeted, "We have a new family member until Chica comes back to us. His name is Chico. Mason renamed him Chody."

Click here to see pictures of the new dog.

Casting rumors for season 4 of the reality series continue and a source told the website Celebrity New and Style that producers reportedly picked Miss Puerto Rico, Joyce Giraud. Marisa Zanuck, Adrienne Maloof and Camille Grammer all confirmed that they will not be appearing in future seasons of the show.

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Real housewives of beverly hills, Brandi Glanville, Taylor armstrong