A man was found dead inside a Saint John home that caught fire Tuesday. An arrest warrant has now been issued for Steven Wallace Martin. (Sarah Konsmo/CBC)

A Canada-wide warrant has been issued for a man wanted in the death of an elderly Saint John man whose body was found inside a burning home in the city's north end earlier this week.  

The arrest warrant was issued for Steven Wallace Martin, 50, on Thursday. Police say he is possibly armed and is considered dangerous.

The body of Robert Ryan, 70, was discovered Tuesday after firefighters responded to a house fire.

The fire started just after 1 p.m. on Tuesday.

Investigators say Ryan was the victim of a homicide, but have not said how he died.