Four suspects at large after fatal beating of Kim Pham. Courtesy: FOX 11

KIM Pham, a 23-year-old university graduate who was beaten by five people outside a nightclub after she apparently 'photobombed' them, has died after being taken off life support.

The assault happened just after midnight on Saturday outside The Crosby nightclub in Santa Ana, south east of Los Angeles.

The Los Angeles Times quoted an eyewitness who claimed that Pham inadvertently walked in front of a group of clubbers who were getting their photo taken.

A woman in her 20s was arrested on Monday in relation to her alleged role in the assault.

Police believe two other women and two men were involved in beating Pham to the ground and stomping on her.

Bystanders took video of the incident on their mobile phones which Los Angeles police are now using in their investigations.

The venue has also called upon patrons to come forward with any information which might help identify Pham's assailants.

Pham's sister had reported to friends and supporters on Facebook that the incident had left her brain dead. She died just after midday on Tuesday, LA time, after her life support was turned off.

Her organs will be donated, as per her wishes.

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