A man has admitted supplying drugs to serial killer Stephen Port, whose victims included Kent man Daniel Whitworth.

Gerald Matovu, 23, of Great Guildford Street, Southwark, pleaded guilty at Southwark Crown Court to supplying class B drug mephedrone, commonly known as Meow Meow, and class C drug GHB to Port between July 1 and August 31, 2015.

He also admitted offering to supply GHB to Port between the same dates.

He will be sentenced on Wednesday, April 26.

The offences came to light during the investigation into Port’s extensive crimes.

Port, 42, a chef, of Cooke Street, Barking, was sentenced to a whole life term in November for the murder of four young gay men and drugging and sexually assaulting another seven victims.

One of the men he killed was former Dartford Grammar schoolboy Daniel Whitworth, 21, from Gravesend.

Port bought the drugs from Matovu for use during consensual sex with his partner. Phone records and downloads from electronic devices belonging to Port clearly showed contact with Matovu and Port had described Matovu as his drug dealer to his partner.

In messages Matovu told Port he had “loads of G” and asked how much he wanted.

Investigating officer Detective Constable Bhulesh Pala, from the Met’s Sexual Offences, Exploitation and Child Abuse Command, said: “Matovu’s activities became apparent during the investigation into Stephen Port and I am pleased we have been able to convict him.”