Armed police officers stormed a Great Yarmouth flat to arrest a London gang member after reports he was 'off his head' with a loaded sub-machine gun.

Norwich Crown Court heard officers quickly responded after getting a call from a terrified Yarmouth man, who had been forced into dealing crack and heroin for the gang, who had also taken over his flat.

The male victim phoned 999 and told police Solomon Oghene, 31, was at his flat in Marine Parade 'off his head' smoking crack cocaine and had a machine gun, which he was waving about like a toy, the court heard.

Armed police arrested Oghene, and the sub-machine gun was seized, on August 19, last year without a shot being fired.

William Carter prosecuting said: 'It was obvious to police that the gun was real and working.'

He said the gun was fully functioning and had three live bullets.

'It is a gun for which there is no legitimate purpose.

Mr Carter said Oghene, described as 'thoroughly intimidating' was also found with £677 in cash and a machete was also seized.

Oghene, from London, admitted possession of a firearm, being concerned in the supply of Class A drugs and possession of a prohibited weapon and appeared via video link for sentence.

Jailing him for 10 years, Judge Anthony Bate commended Norfolk officers involved: 'It is to their credit they were able to contain the situation without a shot being fired and no one being injured.'

He said it was rare for this kind of weapon to be in Norfolk and showed Oghene was a trusted gang member.

He added it was a 'significant and very worrying escalation' that he had brought a sub-machine gun to Norfolk.

Nicola May, for Oghene, said he was not at the top of the chain and his payment for bringing drugs to Norfolk was to get some free drugs for himself.

She said he was given the gun in London and said: 'The gun itself was not his. He had no intention of using it.'

While in jail she said Oghene was putting his time to good use.