The search for a 27-year-old Dublin man who is missing in Wyoming is being scaled back following an intensive operation in the Grand Teton National Park.

Cian McLaughlin was last seen on Tuesday 8 June on a hiking trail in the park, when a climbing guide reported seeing a solo hiker, matching Mr McLaughlin's description, on the Garnet Canyon Trail, a short distance above the Garnet Canyon/Surprise Lake junction.

Mr McLaughlin's car was later found parked near the Lupine Meadows trail head at the National Park.

In a statement, the Grand Teton Park Service said that following days of extensive ground and aerial searches, the operation will shift to a "continuous, but limited mode".

It said that "new clues will be investigated as they come forward" and park staff will continue to patrol and search for signs of Mr McLaughlin's whereabouts.

Over the past week, up to 70 staff have carried out searches in the park, involving multiple search and rescue dog teams, and over 45 helicopter searches have also been carried out.

Grand Teton National Park is 70km long and 40km wide and comprises more than 300,000 acres of mountainous land with lakes and rivers.