The collapsed man was sent to the hospital by a helicopter. Photo: Government Flying Service

A veteran hiker is in stable condition after Civil Aid Service members walked 45 minutes up Buffalo Hill to rescue him when he fell ill during a hike with eight friends on Sunday.

The six rescuers were lowered to a spot around halfway down the hill in Ma On Shan Country Park, west of Sai Kung, because the Government Flying Service helicopter could not safely land due to misty clouds obscuring the landing area.

At 1pm, the man surnamed Chan was hiking on Buffalo Hill but fell ill shortly before he could reach the peak, Apple Daily reported. His friends called the police.

After a 45-minute walk, the team reached the experienced hiker, Sing Tao Daily reported. At 4pm, they carried the semi-conscious man down the hill on a stretcher and sent him with the helicopter to the Pamela Youde Nethersole Eastern Hospital, where he remains stable.

The Government Flying Service said Buffalo Hill is about 2,000 feet or 600 meters in height and its peak resembles the head of a buffalo.