Three men have been arrested after two robberies in Bushey and Harrow in the early hours of Sunday morning.
During the first, a man was approached by a small group who demanded he hand over his money, in Vale Road, Bushey, at 3am.
After allegedly hitting the victim, they stole his wallet, iPhone and gold chain before making off towards Bushey High Street.
Police believe the incident is linked to a similar robbery, at 3.45am in Walton Drive, Harrow, where another man was robbed of his phone and wallet.
Officers are keen to speak to anyone who witnessed either of the incidents or who saw a blue Vauxhall Omega, T-reg, in the Bushey and Harrow areas.
Gianmarco Ippolito, 19, from London, Edward Nadif, 23, from Hayes, and Vincent Oladukun, 30, from Acton, have been arrested and charged with robbery.
Oladukun has been released on bail, while Ippolito and Nadif remain in custody.
Anyone with any information should telephone DC Noel Buckley via the non-emergency number 0845 33 00 222, or Crimestoppers on 0800 555111.
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