SUDBURY -- Ontario Provincial Police rescued a lost hiker Friday morning who had gone to Killarney Provincial Park for a day trip.

Police received the missing persons report Thursday at 9:30 p.m.

"The person was lightly dressed with no other provision for heat or shelter," police said in a news release Friday.

"With the assistance of the West Nipissing OPP members, emergency response team and OPP helicopter, the person was located about 15 hours later by the OPP helicopter, with no injuries."

Police suggest members of the public download the 'what3words' app offered for free by both Android and Apple devices to download.

"The app labels every three squared metres with a unique three-word location string which can be converted into latitude and longitude coordinates for entry into the computer-aided dispatch system in use at the OPP Provincial Communication Centre," police said.

"Even if the caller does not have the app previously downloaded on their mobile device, the PCC communicator can send a link to the caller's cellphone which will enable the caller (with data access and connectivity), to find their what3words location."

The app is available in 43 languages, but shares the location in English.