The Met Police have issued the following statement regarding an illegal rave that is being advertised on Facebook for Saturday night on Wandsworth Common.
"The Met Police is aware of two raves being advertised on social media for this weekend, 20 - 22 June.
"Enquiries are ongoing to try and identify the people who are organising these illegal events. From all the information available at this stage, police believe that what is being advertised is against the law.
"Police are working with the relevant local authorities and land owners in the local areas to make sure that as much as possible is done to prevent these illegal events from going ahead.
Commander Simon Letchford, said: "We are carrying out investigations to track down the people who are advertising and organising these raves this weekend. The people that organise them need to be aware that they are responsible for people’s safety when they plan and put on raves.
"Parties of this nature are not licensed, and they are often dangerous. No security staff, no medics, no concerns about the number of people present and unsafe properties all add up to a really dangerous place for people to be.
"People who live near these suggested venues shouldn’t have to tolerate the associated noise, crime and anti-social behaviour that can come with such raves.
"We will have a policing operation in place inWandsworth over the weekend. Officers have been visiting local properties and land owners to give advice on security.
"Anyone who has any concerns or any information about the people responsible for planning these events should contact us on 101."