Detectives investigating the murder of soldier Lee Rigby have arrested a man on suspicion of being involved in supplying illegal firearms.
The 42-year-old was held in north London this morning and is currently being questioned at a police station in south London, Scotland Yard said.
Searches are also being carried out at homes in north and east London as part of the ongoing investigation into Drummer Rigby's death.
A second suspect is to appear in court in connection with Drummer Lee Rigby's murder in Woolwich.
Drummer Rigby's family say the 25-year-old's death has had a devastating effect on them.
A man will appear in court today charged with the murder of soldier Lee Rigby