Officers investigating an aggravated burglary in Pinner on Sunday, 10 February have arrested a man.
The man, believed to be aged 19, was arrested in Harrow in the early hours of Wednesday, 13 February on suspicion of aggravated burglary. He remains in custody.
The burglary on February 10 saw four burglars forcing their way into a home and then threatened to kill the home owners if they did not cooperate.
The intruders threatened the householders with a large hunting knife and a screwdriver.
Officers from the North West Command Unit investigate.
For more information about the burglary, visit www.mynewsmag.co.uk/victims-recovering-after-terrifying-burglary-in-pinner/