Britney Spears

Britney Spears' Ex-Husband Jason Alexander Arrested at Her Home

Alexander was chased and detained by security after showing up at the California residence, a law enforcement official said

Britney Spears
Scott Dudelson/Getty Images FILE - Singer Britney Spears walks the red carpet at the 2017 Pre-GRAMMY Gala And Salute to Industry Icons Honoring Debra Lee at The Beverly Hilton Hotel on Feb. 11, 2017 in Beverly Hills, Calif.

Britney Spears’ former husband crashed her wedding site in southern California, authorities say.

Ventura County Sheriff’s Capt. Cameron Henderson said officers responded to a trespassing call after 2 p.m. Thursday. He says the pop singer’s first husband, Jason Alexander, was detained at the site of the ceremony.

Henderson says Alexander was arrested after officers noticed he had a warrant for his arrest in another county.

Alexander went on his Instagram live when he approached the event security. In what appeared to be a mostly empty but decorated room, he told them Spears invited him.

“She’s my first wife, my only wife,” said Alexander, who was briefly married to Spears — his childhood friend — in 2014. Their marriage lasted only 55 hours.

“I’m her first husband," he continued in the video. "I’m here to crash the wedding.” Police say that the Instagram Live is now part of the investigation.

Spears was previously married to Kevin Federline, with whom she shares two sons, ages 14 and 15.

Spears and her fiancé Sam Asghari were married on Thursday. The couple announced their engagement nearly nine months ago, after Asghari proposed with a four-carat diamond ring.

The couple met on the set of the “Slumber Party” music video in 2016.

A representative for Spears did not immediately return a request for comment.

Authorities are still investigating the reported trespassing.

Britney Spears is reportedly set to wed fiancée Sam Asghari on Thursday, and two people are not expected to be there for the intimate ceremony are her sons.