The body of a man found dead on a Christchurch beach yesterday morning is being treated as "unexplained", police said today.
The balding white male, estimated to be aged in his 60-70s, was found 200m south of New Brighton Pier by early morning walkers yesterday.
He was found wearing a black jacket, blue jeans and green and black sports shoes.
The man was also wearing a sports watch and had a key on a lanyard around his neck.
Police believe that the man may have used the blue Milazo Adventure bicycle with a wing mirror welded on the handle bar, which police have released a photograph of, to travel around.
"We need help from the public to identify this man as soon as possible so that we notify his family and piece together what has led to his death," said Detective Sergeant Nicola Reeves.
Police urge residents of the eastern suburbs to check on the welfare of elderly men, family members and neighbours, especially they live alone.
Anyone with information on the identity of the man or the owner of the bicycle is asked to contact Christchurch Police Station on 03 363 7400.
Information can also be provided anonymously by calling Crimestoppers on 0800 555 111.