HALIFAX -- A 17-year-old has been charged with first-degree murder in the shooting death of a man in Halifax.

Police say investigators arrested the teen in London, Ont., just before 3 p.m. Thursday with the help of local police and the province's repeat offender squad.

The arrest comes months after 20-year-old Joseph Douglas Cameron was found dead on a Dartmouth sidewalk.

On the morning of March 29, police were called to Spring Avenue and Mount Edward Road after shots were reportedly fired.

Police arrested another 17-year-old male last month in connection with the shooting, but he was released without charges.

They say the teenager who is now in custody in London will be returned to Nova Scotia for a court appearance at a later date.