Investigators want the public to help them trace fugitives thought to be on the run in the Costa del Sol region of Spain.

Among those on the latest 'most wanted' list are men suspected of murder, child sex offences, kidnapping, robbery and drug smuggling. They include a string of high-profile British gangland figures linked to organised crime, murder and violence.

One of them is Anthony Fraser, 39, of London, who is the grandson of 'mad' Frankie Fraser. He is wanted over a plot to smuggle two tonnes of cannabis, hidden in a lorry of frozen chicken, into Britain from Holland in March 2009.

Fraser is alleged to have gone on the run after £5million worth of cannabis was discovered in the storage unit in Grays, Essex. Five men were arrested and later jailed for a total of 40 years in a trial at Southwark Crown Court.

Ken Gallagher, head of European Operations for the Serious Organised Crime Agency, said: 'We have many ways of tracking down wanted offenders, but where they drop off our radar we ask the public to help.

'Anthony Fraser is wanted for his part in an importation of two tonnes of cannabis, for which others have already been convicted.'

Mobster: The grandson of 'Mad' Frankie Fraser is one of the ten most wanted in the Costa del Sol

Fraser's grandfather Mad' Frankie, 87, was a feared member of the Richardson gang, south London rivals of the Krays during the 1960s.

But he attended the funeral service for Reggie Kray at St. Matthew's Church in Bethnal Green in East London in October 2000.

The 'old-school' gangster was known for ripping out the teeth of his victims without using anaesthetic.

He spent almost all his adult life in prison and was nicknamed 'Mad' Frankie because he was twice certified insane.

Anthony Fraser is described as of average height, with green eyes and scars on his left brow and right hand.

Another of the suspects is Eriberto Jimenez Melo, 33, of Stamford Hill, north London, who has been jailed for 25 years in his absence for conspiracy to supply cocaine. He is also known by the nicknames Nando and Eric.

Melo, who was born in the Dominican Republic, was responsible for handling female drug mules. He is described as 5ft 10ins, with dark brown hair and brown eyes.

Details of all 10 men will be posted by Crimestoppers on a 'most wanted' website targeting the region. Several Spanish coastal resorts have been dubbed the 'Costa del Crime' since the 1970s because hundreds of wanted British criminals are thought to have fled there.

The Serious Organised Crime Agency (Soca) and the Spanish police authorities are also involved in the move, codenamed Operation Captura. Several waves of appeals, first launched in October 2006, have led to the arrest of 38 suspects out of 50 appeals.