A 400-strong crowd of revellers wearing face masks pelted police and paramedics with bottles and bricks after a party spiralled out of control in Stamford Hill on Saturday night.

Hackney Gazette: Police protect the LAS as they treat a patient at the scene. Photo Twitter @LAS_JRUPolice protect the LAS as they treat a patient at the scene. Photo Twitter @LAS_JRU (Image: Archant)

Bins were pushed towards police vehicles to block them, and objects were hurled at officers from balconies after police arrived at the large party in Sandford Court, Bethune Road just after 11.30pm.

One witness commented on Twitter, saying: “It looked like the London riots four years ago, it was out of control.”

The London Ambulance Service said staff came “under attack” from lobbed bottles while they treated a member of the public who was suffering breathing difficulties.

A picture on the London Ambulance Service’s Joint Response Unit twitter account (@LAS_JRU) shows a a police officer protecting a paramedic who is treating a patient. The caption reads: “One of our operatives is protected by MPSHackney while treating patient in difficult environment £999family”.

A police helicopter, the Met’s Territorial Support Group and dog units were dispatched to the scene to offer back up.

Several fights then broke out between party goers.

DCI Cath Edginton said officers had attended because several locals had “contacted police to complain about noise levels at the party”.

She continued: “To be confronted by hundreds of people and attacked in this way is wholly unacceptable.

“It is fortunate that none of my officers were injured.”

The group was not dispersed until about 2am on Sunday, police said.

Officers then seized a knife following a search of the area.

No arrests were made during the disorder but police are trying to identify and track down those involved.

Anyone with information should call police on 101 or contact Crimestoppers anonymously on 0800 555 111.