AN ELDERLY man has been arrested after a teenage boy was flashed and sexually assaulted.

A 67-year-old man from Southampton is in police custody concerning an assault on a teenage boy. 

The youth had been walking alone along Winchester Road, Bishop's Waltham, on Friday, December 9, when a stranger approached him. 

The man grabbed the teen's chest and fled the scene after lifting up his clothes to expose himself, say police.

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A man has now been arrested on suspicion of sexual assault and two offences of indecent exposure.

He remains in custody at this time.