Boston's raging drug problem has deepened after images surfaced of a man hunched over outside of the city's poshest mall.

The unidentified man could be seen lurched over and using a phone outside of Copley Place in the Democratic-led city, in footage taken by a passer-by.

It was shared to social media by a group of locals openly opposed to Democrat Mayor Michelle Wu as the latest example of the problems facing the Massachusetts city.

'Wow can't even shop in Mayor Wu's Boston without running into drug addicts,' the post said. 'This is in Boston's most luxurious mall too.'

The city has been in the spotlight after residents lashed out at Wu, blaming her policies for enabling behavior similar to what was captured outside the mall.