Credit: TMZ

Simon Barney -- the estranged husband of The Real Housewives of Orange County star Tamra Barney -- has been arrested on suspicion of domestic battery.

According to TMZ, he was taken into police custody Tuesday morning after getting into an argument with her over their dog. He allegedly threw a leash at her, and it hit her wrist.

He was being held on $10,000 bail as of late Tuesday morning.

Earlier this year, he filed for divorce, alleging that she cheated on him and was verbally abusive.

Tamra has said that "all accusations are false."

The two, who have been wed for almost 12 years, have three children.