An excess supply of cocaine is fuelling the wave of violence and murders in the UK, a leaked Home Office report reveals.

The government blames a bumper harvest season in Columbia on the surging levels of the Class A drug in the UK and states they are 'certain that drugs are playing an important role in driving up homicide and it is highly likely to be affecting other serious crime too'.

Last night, London saw it's 74th murder of the year when a 35-year-old man was fatally stabbed in a north London park.

A Met Police officer stands outside Turnpike Lane tube station after a fatal stabbing last night

In March, London's murder rate was higher than New York for the first time.

Tomorrow, London Mayor Sadiq Khan will meet Home Secretary Sadiq Javid for urgent talks to tackle 'the scourge of serious violence across Britain'.

Nationwide, knife attacks are up 22 per cent and robberies up 33 per cent. Gangs are now leaving cities and forging new turf in villages and seaside towns, the report, written in March, says.

The excess supply of cocaine and crack cocaine has also lead to an increase in the county lines phenomenon, which sees urban dealers finding untapped rural towns to exploit.

The scene in north London this morning following a stabbing last night

Criminal gangs are now going for middle-class parents on the school run

Dealers coming from London and other major cities are more violent and aggressive than locals who use to run markets.

Despite the government claiming the problem is on the supply of cocaine, comparable countries aren't suffering a similar rise in violent crime.

The UK has seen a 42 per cent increase in positive tests for cocaine and a 28 per cent increase in drug injectors, and 10 per cent rise in violent crime in the last year.

The number of moped-enabled crimes in London has increased more than 25-fold in the last five years, from fewer than 900 in 2012 to upwards of 23,000 in 2017.

In February more than 250 knives and swords were seized across London in just one week and 283 people, many of them teenagers, were arrested for carrying them.

In contrast, other European nations such as France, Germany, the Netherlands, Italy, Spain have all seen significant falls in crime.

Footage taken after the arrival of emergency services a crowd has gathered

Earlier this week, Metropolitan Police Chief Cressida Dick told MPs that austerity was one of several reasons for a bloody wave of violence in London that has seen dozens of killings so far this year.

Ms Dick told the Home Affairs Committee today that 'reduced numbers of officers' had definitely had an impact.

A surge in cocaine sales, driven by middle class users taking the drug at dinner parties, is another major factor the Commissioner said.

Metropolitan Police Commissioner Cressida Dick (pictured in Parliament today) warned ministers are 'naive' if they think police cuts have not fuelled violent crime in the capital

In England and Wales overall, the number of deployable officers across the 43 forces plummeted from 143,734 in March 2010 to 123,142 in March 2017.

Three of Britain's biggest forces lost nearly 2,000 officers each other the seven years.

Louise Haigh, the shadow minister for crime, told The Sunday Times: 'A toxic cocktail of a more aggressive and profitable drug market in the context of eight years of austerity have created the conditions for violent crime to thrive. The Government must invest in the police immediately to begin to undo some of the damage that taking 21,000 officers off our streets has done.'

Michael McIntyre talks to an officer beside his damaged car after he was mugged for his £15,000 Rolex watch in Golders Green, north London

Just this week, one of Britain's most loved stars Michael McIntyre was attacked by a man on a moped.

The comedian, 42, who is worth £38million, was waiting outside a school in north London when a gang of masked moped riders armed with hammers smashed the driver's window of his £120,000 Range Rover and ripped the £15,000 Rolex from his wrist in front of his terrified son.

In a separate incident, shots were fired early yesterday outside South Woodford Tube station in North East London.

Also yesterday a schoolboy appeared in court accused of seven robberies in an hour-long spree in London while on the back of a moped.

The report also notes that the purity of crack cocaine has risen from 30 to 70 percent and the number of automatic weapons seized has doubled in the last two years.

It also notes that attempts to keep young offenders out of jail by offering them community service has helped fuel the crime epidemic.