THOUSANDS of Pokemon fans, including children, are likely to descend on Sydney’s Kings Cross tonight after 8000 invites were sent out on Facebook.

The ‘Pokemon Party Sydney,’ is being labelled as Sydney’s biggest ever Pokemon Party where guests can ‘partake in Pika-pproved Poké fun with fellow Pokéfans.’

The 18+ event is being held at the Kings Cross Hotel in the heart of the now empty nightlife district, raising concerns thousands of underage fans will turn up with nowhere to go.

“How stupid is this inviting kids to Kings Cross for Pokemon Party. Most are kids that play this game,” one concerned parent wrote on Facebook.

“Are they serious? I don’t know about you but I wouldn’t want my kid running around the streets of Kings Cross.”

According to the event’s Facebook page, 1800 people are confirmed as attending, with another 8000 interested.

The company behind the event ‘Poké Pals,’ are selling tickets online for $10 or $15 at the door.

“We suggest you have Nurse Joy on standby Saturday morning, this is going to be big,” the event page said.

The Kings Cross Hotel have confirmed the ‘Pokemon Party’ saying a number of rooms had been reserved for the event.

Kings Cross Police are aware of the possible influx of thousands of Pokéfans.

“Kings Cross Local Area Command has sufficient police rostered for the evening who will be monitoring the event,” Inspector Mandy Hancock told News Corp Australia.

“Police will intervene if attendees are causing obstruction to traffic or pedestrians, creating excessive noise or committing other offences.

“Police welcome people into the Kings Cross entertainment precinct who are there to enjoy themselves within the law,” she added.

Crazy scenes have played out across the globe over the last few weeks as the Pokemon phenomenon took hold.