Thirty people have been arrested after police raided houses across Haringey and found £500,000 in cash.

Police said they carried out a number of warrants on July 15 and July 29 in the early hours of the morning following an eight month undercover operation called Operation Oarfish.

Officers said 27 men and three women, aged between 18 and 65, have been arrested on the suspicion of drug offences.

A number of items were seized including three knives, a quantity of class A and class B drugs and £500,000 in cash.

Detective Sergeant Matthew Dumpleton, of the Met’s north area command proactive unit, said: "During this long-term investigation, a number of officers were involved in careful undercover work to build a picture of the issues in our area.

"I would also urge anyone with information about individuals who are involved in drug dealing and violent crime to contact police so that we can take action - your information is invaluable to us."