A 'Spice head' burglar who stole £1million of diamonds from Simon Cowell's home has reportedly been put in his jail's segregation block after his cell was damaged.

Darren February, 34, was already in prison for knocking down and killing a motorcyclist before being sentenced for stealing jewellery and passports from Cowell's home while he slept.

The career criminal is suspected of smashing up his cell in Swaleside prison on the Isle of Sheppey, Kent, after taking the zombie drug, Spice.

February (pictured left in a mugshot and right on CCTV in relation to the Cowell burglary) has committed 58 offences spanning two decades, and was first convicted aged 12

In a victim statement at the time of the court case Cowell admitted that since the traumatic break-in he felt in 'constant fear' of another burglary

A source told the Sun: 'February is creating problems in prison after getting hooked on the drug. He is one of a number of "Spice heads" who regularly get into bother with prison officers.

'He was moved to the segregation block after his cell was damaged a couple of weeks ago.'

When asked to confirm the prisoner's actions, a Ministry of Justice spokeswoman said: 'We do not comment on individual prisoners.'

February was jailed in 2016 for eight and a half years for causing death by dangerous driving, and will now serve a consecutive sentence of another eight years for the December 2015 burglary at Cowell's property in Holland Park, west London.

Cowell, 57, his partner Lauren Silverman, 39, their son Eric, then aged two, and a nanny were asleep in the four-floor, five-bedroom house during the raid.

Cowell (left), 57, his partner Lauren Silverman (right), 39, their son Eric, then aged two, and a nanny were asleep in the four-floor, five-bedroom house during the raid

February broke into the five-bedroom property in upmarket Holland Park, west London, through a patio door and stole jewellery and two passports

In a victim statement at the time of the court case Cowell admitted that since the traumatic break-in he felt in 'constant fear' of another burglary.

CCTV released during the hunt for Cowell's intruder showed February running down a road and looking over his shoulder while carrying a large bag.

Spice, also known as Black Mamba, was made illegal in May 2016. The drug is a synthetic cannabinoid which has similar effects to natural cannabis.

Effects include convulsions, shortness of breath, kidney failure and cardiac arrest, as well as hallucinations and irreparable damage to the user’s mental health.

The extent of the problem of Spice (pictured) in British prisons was partially revealed by a Channel 4 documentary which showed inmates regularly taking drugs

The drug has become an increasing problem in the UK, particularly among homeless communities and in prisons.

Last month, the Minister for Vulnerability and Safeguarding, Sarah Newton, said: 'Enforcement work is crucially important, but isn't the only way we're dealing with the problem of drugs like Spice.

'We are also focusing on vital education and support for people who are dependent on drugs and others, like children, the homeless and others who could be vulnerable.'