Police said Sunday that they were investigating the separate shooting deaths of two men Saturday in North Philadelphia.

At 7:30 a.m. Saturday, officers were called to the 1800 block of Sulis Street, where they found a man in his late 30s lying on steps outside a building, shot twice in the chest. He died at the scene.

The victim's name has not been released. Police said that they did not know a motive in the shooting and that no arrests have been made.

In the second case, about 4:34 p.m. Saturday, police were called to the 2300 block of West Huntingdon Street, where they found a 36-year-old with multiple gunshot wounds inside a green Pontiac Grand Prix. He was pronounced dead at the scene.

The victim's name was not released, pending notification of relatives. Police said they did not know of a motive for the shooting.

A suspect in that case was described as a heavy-set, light-complexioned black male, 30-35 years old, 5-foot-6 to 5-foot-7, wearing a blue work uniform and a reflective vest.