Three men have been jailed for almost 40 years after they worked together to import millions of pounds worth of drugs which were dropped from a plane into a Kent field.

Andrew Barrett, Michael Mealing and Jonathan Hart plotted prospective landing and drop off sites in Kent on a map and carried out a recce of a location, unaware that they were under surveillance by the National Crime Agency.

On June 23, 2016 investigators watched as a light aircraft flew low over one of the sites that had been researched by the group, a secluded field a few miles from Faversham.

Shortly afterwards Mealing and Hart drove away from the location in a Land Rover.

They were followed to a builders yard in Faversham where NCA officers moved in to arrest them. In the boot of the vehicle they found three large fuel containers packaged with tape capable of withstanding a drop from the air.

A total of 31 kilos of high-purity cocaine was recovered from the containers, with a wholesale value to organised crime of just over £1 million. If cut and sold on the street could have been worth more than £2.5 million.

Shortly afterwards Barrett was seen at an address in Watford in a white van. He was also arrested.

In the back of the van NCA officers found a holdall containing a further 18kg of cocaine, 1kg of MDMA and 15kg of cannabis.

The stash had a combined wholesale value of around £650,000, but if sold on the streets could have been worth more than £1.5 million.

All three men later pleaded guilty to importing cocaine, while Barrett also admitted possessing class A and B drugs with intent to supply and money laundering.

At the Old Bailey on Friday, 41-year-old Barrett from Cheddington, Bedfordshire, was sentenced to 16 years in prison.

Mealing, 41, from Corsham, Wiltshire, was jailed for 12-and-a-half-years, and Hart, 50, who's address is unknown, was given 10 years and nine months.

Steve McIntyre, from the NCA’s Border Policing Command, said: "Cocaine is a commodity that has direct association to organised crime groups notorious for highly aggressive crime.

“The distribution networks involved are often also linked to firearms, knife crime, exploitation of young and vulnerable people, and criminal gang culture. These men occupied a place at the start of that chain of harm.

“They attempted to exploit perceived weaknesses in border controls, but working with the police and Border Force we are actively targeting criminals who try to use general aviation and small airfields as a way into the UK.

“Our investigation into others who may have been involved continues.”

Dan Scully, Head of Border Force Intelligence Operations said: "These convictions highlight how law enforcement is working together effectively to secure our borders.

“In this case, a specialist Border Force intelligence team identified a suspicious pattern of activity and worked closely with NCA officers to ensure they were in place to make arrests. In the process, a large amount of dangerous drugs were kept off the UK’s streets.

“Border Force uses a range of intelligence gathering techniques in the fight against smuggling and I would urge anyone with information about suspicious activity to report it.”

The NCA is a partner in Project Pegasus, a multi-agency campaign encouraging people living and working close to small airfields to report unusual activity associated with general aviation.

Anyone with information about unusual activity can report it to their local police force on 101 or anonymously via Crimestoppers on 0800 555 111.