as police could identify the area from a flagpole seen in the video.
Footage shows women dressed in Western-style clothing with bottles and drinks seen on a nearby table which is believed to be alcohol.
Saudi Arabia has strict rules on unrelated men and women socialising and a total ban on the use and sale of alcohol.
The chief suspect, a Jordanian, was arrested while allegedly trying to flee the country.
After being questioned by the police, he eventually admitted to organising the party, authorities say.
Three female guests, a Lebanese woman and her friends were later questioned and admitted to being at the party, Almasar Online has reported.
The Bureau of Investigation and Prosecution is looking into the case and could press charges.
Work has also begun to try and identify any other guests.
Those accused may face harsh punishments if found guilty.
A 74-year old British pensioner was sentenced to 350 lashes after completing a year in jail in Saudi Arabia for illegally carrying alcohol.
The family of Karl Andree, a grandfather of seven, feared he would not survive the ordeal.
Fortunately Mr Andree, who was caught with home-made wine, was freed a year ago after the British government stepped in.
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