In an eerie coincidence, two men were found dead two hours apart in opposite ends of the city this afternoon, police said.

Neither case shows any signs of foul play, according to Chief Inspector Scott Small.

In the first incident, a 33-year-old man was found unresponsive just before 2:30 p.m. in the basement of a home on Colorado Street near Dauphin in North Philly, police said.

He was pronounced dead at the scene by medics. Preliminary evidence indicated that his death was either due to a drug overdose or carbon-monoxide asphyxiation from a nearby heater, Small said.

About two hours later, another man was found dead, this time outside Delilah's, a gentleman's club on Spring Garden Street near Front in Old City, police said.

In that incident, a 34-year-old homeless man was found slumped behind the club. Medics pronounced him dead at the scene, police said.

He had no signs of physical trauma, and is believed to have died from exposure, Small said.

The Medical Examiner's Office is investigating both deaths and will provide an official ruling on what caused them after autopsies are completed.