Medicine Hat Police and Fire department officials are investigating a suspicious shed fire in the city’s south west. At Around 9:00 last night, firefighters responded to the shed fire in a field behind Sierra Drive SW. Police and fire investigators are treating the fire as suspicious at this time and say that they will continue their investigation this morning into the cause. Anyone that may have seen something suspicious is asked to contact the Medicine Hat Police service at 529-8481 or to phone a tip to crime stoppers at 800-222-8477