Police have issued a warning after two women were robbed a week apart from each other.
Lone women were targeted in the Brent Cross area - but the robberies are not being linked by police.
The first incident happened in an underpass which runs under the A41 Hendon Way, close to Woodville Gardens, at around 8.30pm on October 19.
She had headphones and a mobile phone stolen from her.
A week later, on October 26, a woman on her own was threatened with a weapon.
It happened at around 7.40pm under the Brent Cross flyover near the junction with Prince Charles Drive.
A mobile phone was taken from her.
Golders Green Police issued a warning on Wednesday for anyone walking in secluded areas to be aware of their surroundings.
Police officers from the safer neighbourhood team will increase patrols in the area and warn members of the public to be vigilant.
Anyone with any information about the robberies is asked to contact police at goldersgreen.snt@met.police.uk
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