Britney Spears’ former husband Jason Alexander has been arrested at the singer’s Los Angeles home as she prepared to wed her partner Sam Asghari.

Officers from Ventura County Sheriff’s Department responded to an incident of trespassing at the address and later arrested 40 year-old Alexander.

A spokesperson for the department confirmed to the PA news agency that Alexander was arrested for an out-of-county warrant and had been transported from the scene to a police station following the incident.

It is understood that the intimate wedding ceremony between the singer, 40, and her 28-year-old fitness trainer partner was to be held on Thursday.

Shortly before the incident, her former partner Alexander posted an Instagram live story from near to the property, in which he said he was there to “crash” the wedding.

Spears and Asghari became engaged in September last year, with the singer joking that the proposal was “way overdue”.

A 13-year conservatorship which had controlled her life was terminated by Los Angeles Superior Court in November last year.

A source quoted by American publication People had said the ceremony on Thursday was to be attended by around “60 guests of those in their close circle”.

Spears has two children, Sean and Jayden, with ex-husband Kevin Federline.