Sydney, Feb 25 : Australian police are investigating a Facebook ''party page'' after five teenagers had to be treated for alcohol-related injuries at the party promoted on the social networking site.

The party was promoted on a Facebook page described as the ''official'' page to post and promote open events and house parties in the Brisbane area.

Up to 1000 people converged on Tamborine Memorial Hall at Mount Tamborine on the Gold Coast from 7 pm for a party dubbed ''Yo-Yo''s Round 2'', reports News. com. au.

An ambulance spokeswoman confirmed crews were called to the hall for five different alcohol related injuries and two people, including an 18-year-old, were transported to Logan hospital for precautionary reasons.

Two of the five cases were said to be of 14-year-olds. Organisers of the party claimed they had legally rented the hall and security were on hand.

The police, however, described the mood of the crowd as ''very aggressive'' and reported the security was not adequate, with several fights breaking out throughout the night.

Police monitored the situation until buses could be organised to transport them away from the scene. The party was not registered with the police, and both the owners of the hall and the organisers of the party will be investigated. (ANI)