Revellers smashed up a former Royal Mail delivery office in Croydon during an illegal rave.

Missiles, including furniture and fire extinguishers, were reportedly thrown at police when they arrived to shut down the event.

Thousands of party-goers descended upon the venue in east Croydon at around 9pm last night.

At least two people were arrested for disorder related offences.

Police called for back from across London, but at 11pm the decision was made to allow the rave to continue to avoid any further trouble.

The event, which was held in the old Royal Mail delivery office on Cherry Orchard Road, went on until the early hours of the morning, with many inside reporting serious damage to the building.

Police said officers eventually entered the building at 08:30.

The area around the building, which is located opposite East Croydon station, was cordoned off this morning. Trams are not currently running through the station.

Croydon Central MP Gavin Barwell said those responsible should "feel the full force of the law".

Writing on his blog, Mr Barwell said that police found around 200 people inside, and a further 300 outside, when first called to the building at 9pm.

He added: "As police sought to secure the building in an attempt to prevent further attendance, the crowd outside rapidly swelled to excess of 1,000.

"At this point additional police resources were requested from across London.

"Within 30 minutes the crowd had doubled and was increasing further with every train that arrived at East Croydon station.

"Officers became the focal point of the crowd's frustration and missiles began to be thrown at the police.

"This then escalated to fire extinguishers and furniture being thrown from the building at the officers below."

The delivery office was closed earlier this year after planning permission was given to turn it into flats.