Photo: Rodin Eckenroth/Getty

Ian Ziering‘s wife,Erin Kristine Ludwig, has filed for divorce less than a week after the couple announced their separation.
According to the documents, which were filed in Los Angeles Superior Court on Tuesday, Ludwig cited “irreconcilable differences” as the reason for the split. Ludwig and Ziering are seeking joint custody of Mia and Penna, with Ludwig maintaining physical custody and Ziering having visitation time.
The documents also show that Ludwig is requesting Ziering pay attorney’s fees.
The news comes just five days after Ziering, 55, announced thecouple’s decision to call it quitsfollowing nine years of marriage on Thursday.
“It is with a heavy heart that I tell you Erin and I are splitting up,”he wrote on Instagramlast week. “With our hectic work schedules we could not be busier, and over the last few years have grown apart.”
Despite their split, theBeverly Hills 90210star had nothing but good things to say about his estranged wife, whom he called “one of the most incredible women I have ever met and the best mom to our kids.”
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The actor, who played Steve Sanders on the hit ’90s show and its recent rebootBH90210, said he was speaking out to set the record straight about their marriage coming to an end.
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Ian Ziering/ Instagram

“We ask that you respect our privacy at this difficult time as we focus on what is important to us, our girls,” Ziering added, signing his note, “Peace and love, Ian.”
Ziering and Ludwig first started dating in 2009. In February 2010, the actor confirmed to PEOPLE that he hadpopped the questionto his girlfriend, who he said was working as a nurse at the time.
This was Ziering’s second marriage. In 1997, he married model-actress Nikki Schieler Ziering, but they divorced in 2002.
source: people.com