Britney Spears' Ex Jason Alexander Was Arrested After Crashing Her Wedding And Posting Footage From Her Home To Instagram Live

Britney Spears' ex Jason Alexander has been arrested after apparently crashing

her wedding at her home in Thousand Oaks, California, on Thursday.

Spears' lawyer Mathew Rosengart, a former federal prosecutor, told BuzzFeed News that Alexander had been taken into custody.

Rosengart, who has been representing the pop star in proceedings over her now-defunct conservatorship,

expressed thanks to "the good work and fast response" of the Ventura County Sheriff's Office.

Ventura County Sheriff's Captain Cameron Henderson said deputies responded to a call of a trespasser at 2:07 p.m.

Henderson confirmed that Alexander, 40, was arrested, saying he was booked on an out-of-county warrant.

The footage showed an elaborate archway of roses set in front of rows of seating in an enclosed area.

Alexander was briefly married to the pop star in 2004.